{"title":"Header Kits","description":null,"products":[{"product_id":"kooks-2851h420","title":"Kooks GM 1500 4.8 \/ 5.3 Header Kit, 1-7\/8-inch (1999-2006) | 2851H420","description":"\u003ch2\u003eMake your GM V8 part of the enjoyment\u003c\/h2\u003e\u003cp\u003eUpgrade the front exhaust on your supported GM 1500 truck or SUV with Kooks 1-7\/8\" long tube headers and a Performance-catted Y-pipe. The kit covers the listed 4.8- and 5.3-litre applications and joins the OEM rear exhaust, letting a compatible cat-back stay in place.\u003c\/p\u003e\u003cp\u003eSKU: 2851H420\u003c\/p\u003e\u003ch2\u003eA matched package for your truck\u003c\/h2\u003e\u003cp\u003eThe 304 stainless headers have 3\" collectors feeding the supplied 3\" Y-pipe. Choosing the headers and front connections together gives you a coordinated conversion from the cylinder heads to the retained rear exhaust.\u003c\/p\u003e\u003ch2\u003eChoose around your engine and year\u003c\/h2\u003e\u003cp\u003eThis is the 1-7\/8\" package for the listed 1999-2006 applications. A separate 1-3\/4\" kit is also available. Choose the primary around your engine modifications; the larger size alone is not a promise of a better result on every engine. Performance cats are for naturally aspirated use.\u003c\/p\u003e\u003ch2\u003eFitting your exhaust\u003c\/h2\u003e\u003cp\u003eSome installations with 90-degree spark-plug boots need the wires modified as shown in the fitting guide, or replaced with suitable aftermarket wires.\u003c\/p\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2005\u003c\/td\u003e\n\u003ctd\u003eCadillac Escalade Base\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2006\u003c\/td\u003e\n\u003ctd\u003eChevrolet Avalanche 1500 Z71\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2006\u003c\/td\u003e\n\u003ctd\u003eChevrolet Avalanche 1500 Base\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2006\u003c\/td\u003e\n\u003ctd\u003eChevrolet Avalanche 1500 LT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2006\u003c\/td\u003e\n\u003ctd\u003eChevrolet Avalanche 1500 LS\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2006\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2006\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LT\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2006\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LS\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2006\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LS\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2005\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 Base\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2005\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 Base\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2006\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 WT\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2006\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 WT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000-2006\u003c\/td\u003e\n\u003ctd\u003eChevrolet Suburban 1500 LS\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000-2006\u003c\/td\u003e\n\u003ctd\u003eChevrolet Suburban 1500 LT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000-2006\u003c\/td\u003e\n\u003ctd\u003eChevrolet Suburban 1500 Base\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004-2006\u003c\/td\u003e\n\u003ctd\u003eChevrolet Suburban 1500 Z71\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000-2006\u003c\/td\u003e\n\u003ctd\u003eChevrolet Tahoe LS\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000-2006\u003c\/td\u003e\n\u003ctd\u003eChevrolet Tahoe LS\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000-2006\u003c\/td\u003e\n\u003ctd\u003eChevrolet Tahoe LT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000-2004\u003c\/td\u003e\n\u003ctd\u003eChevrolet Tahoe LT\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000-2006\u003c\/td\u003e\n\u003ctd\u003eChevrolet Tahoe Base\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000-2006\u003c\/td\u003e\n\u003ctd\u003eChevrolet Tahoe Base\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003-2006\u003c\/td\u003e\n\u003ctd\u003eChevrolet Tahoe Z71\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003-2004\u003c\/td\u003e\n\u003ctd\u003eChevrolet Tahoe Z71\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2006\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 SLE\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2006\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 SLT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2006\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 SLE\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2004\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 SLT\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2006\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 SL\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2006\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 SL\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2006\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 WT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2006\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 WT\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2005\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 Base\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2005\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 Base\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 HT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 HT\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000-2006\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon SLE\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000-2006\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon SLT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000-2006\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon SLE\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000-2005\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon SLT\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon SL\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon SL\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000-2006\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon XL 1500 SLT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000-2006\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon XL 1500 SLE\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon XL 1500 SL\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e2851H420\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplications\u003c\/td\u003e\n\u003ctd\u003eListed 1999-2006 GM 1500 trucks and SUVs, 4.8L \/ 5.3L V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eY-pipe\u003c\/td\u003e\n\u003ctd\u003e3\" Performance-catted stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003eOEM interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalyst condition\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpark-plug wire clearance\u003c\/td\u003e\n\u003ctd\u003eSome 90-degree-boot installations require wire modification or suitable replacement wires\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs the 1-3\/4-inch version the same SKU?\u003c\/h3\u003e\u003cp\u003eNo. The smaller-primary package is 2851H220.\u003c\/p\u003e\u003ch3\u003eDoes this kit replace the rear mufflers?\u003c\/h3\u003e\u003cp\u003eIt supplies the headers and front Y-pipe, joining the OEM rear exhaust interface.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003eCompetition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":55646887149910,"sku":"2851H420","price":3465.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/73dc1e0ef0acd40f54f5cac694a74599_905743ad-ecbd-485d-b01a-e22e4f183afa.jpg?v=1791452448"},{"product_id":"kooks-1997-2004-c5-corvette-header-x-pipe-kits-1340afa1","title":"Kooks Corvette C5 Header and X-Pipe Kits without Emissions Fittings","description":"\u003ch2\u003eChoose the C5 exhaust upgrade that suits your engine\u003c\/h2\u003e\u003cp\u003eGive your C5 a matched set of Kooks long tube headers and a catted X-pipe, with a choice of primary size and catalyst specification. These packages are supplied without emissions fittings and connect to the 2-1\/2\" OEM-style rear exhaust. The available combinations are shown by SKU so you can choose the kit you actually need.\u003c\/p\u003e\u003cp\u003eSKUs: 2150H220, 2150H230, 2150H420, 2150H430, 2150H630\u003c\/p\u003e\u003ch2\u003eThree primary sizes, clearly compared\u003c\/h2\u003e\u003cp\u003eChoose 1-3\/4\" or 1-7\/8\" headers with Performance or GREEN cats, or 2\" headers with GREEN cats. All use 3\" collectors and the same OEM-style rear interface. Select the primary size for your engine and modifications; a larger tube is not automatically the right choice for every C5.\u003c\/p\u003e\u003ch2\u003eChoose the catalyst for the completed build\u003c\/h2\u003e\u003cp\u003ePerformance cats suit naturally aspirated engines. GREEN supports forced induction. The headers on this page have no emissions fittings, so use the separate emissions-fitting package when your installation calls for that version.\u003c\/p\u003e\u003ch2\u003eChoose your configuration\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"variant-comparison\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eConfiguration\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSupplied arrangement\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ engine conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2150H220\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-3\/4\"; Cat Type: Performance Cats; Includes Emissions Fittings: No\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\" headers; Performance Cats front connections\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2150H230\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-3\/4\"; Cat Type: GREEN Cats; Includes Emissions Fittings: No\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\" headers; GREEN Cats front connections\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2150H420\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Cat Type: Performance Cats; Includes Emissions Fittings: No\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; Performance Cats front connections\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2150H430\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Cat Type: GREEN Cats; Includes Emissions Fittings: No\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; GREEN Cats front connections\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2150H630\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 2\"; Cat Type: GREEN Cats; Includes Emissions Fittings: No\u003c\/td\u003e\n\u003ctd\u003e2\" headers; GREEN Cats front connections\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1997-2004\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette Base\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e2150H220, 2150H230, 2150H420, 2150H430, 2150H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1998\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette Indianapolis 500 Pace Car\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e2150H220, 2150H230, 2150H420, 2150H430, 2150H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001-2004\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette Z06\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e2150H220, 2150H230, 2150H420, 2150H430, 2150H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette 50th Anniversary Edition Pace Car\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e2150H220, 2150H230, 2150H420, 2150H430, 2150H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette 50th Anniversary Edition\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e2150H220, 2150H230, 2150H420, 2150H430, 2150H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKUs\u003c\/td\u003e\n\u003ctd\u003e2150H220, 2150H230, 2150H420, 2150H430, 2150H630\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e1997-2004 Corvette C5 5.7L LS1\/LS6; see trim-specific years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary choices\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\", 1-7\/8\" or 2\"; see the option table\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollectors\u003c\/td\u003e\n\u003ctd\u003e3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear interface\u003c\/td\u003e\n\u003ctd\u003e2-1\/2\" OEM-style exhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEmissions fittings\u003c\/td\u003e\n\u003ctd\u003eNot included on these header versions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePerformance catalyst condition\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eDoes every header size have both cat choices?\u003c\/h3\u003e\u003cp\u003eThe 1-3\/4\" and 1-7\/8\" choices have Performance or GREEN cats. The 2\" choice on this page has GREEN cats.\u003c\/p\u003e\u003ch3\u003eWhich version has emissions fittings?\u003c\/h3\u003e\u003cp\u003eThese kits do not. The separate early-C5 emissions-fitting kits provide that header version.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003e2150H220, 2150H420: Competition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"1-3\/4\" \/ Performance Cats \/ No","offer_id":55646887182678,"sku":"2150H220","price":3286.45,"currency_code":"GBP","in_stock":true},{"title":"1-3\/4\" \/ GREEN Cats \/ No","offer_id":55646887215446,"sku":"2150H230","price":3854.44,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\" \/ Performance Cats \/ No","offer_id":55646887248214,"sku":"2150H420","price":3382.86,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\" \/ GREEN Cats \/ No","offer_id":55646887280982,"sku":"2150H430","price":3950.84,"currency_code":"GBP","in_stock":true},{"title":"2\" \/ GREEN Cats \/ No","offer_id":55646887313750,"sku":"2150H630","price":4045.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/4b2203dadef8ff2701713bae34f557c9_0ebb49fa-f9f2-4ef6-8a0f-a9ca0846e5d9.jpg?v=1791452448"},{"product_id":"kooks-1997-2004-c5-corvette-header-x-pipe-kits-f8e4b91c","title":"Kooks Corvette C5 Emissions-Fitting Header and X-Pipe Kits (1997-2000)","description":"\u003ch2\u003eUpgrade your early C5 with headers made for its fittings\u003c\/h2\u003e\u003cp\u003eGive your early C5 a matched long tube header and X-pipe upgrade while choosing the header version with emissions fittings. These kits use 1-7\/8\" primaries and a 2-1\/2\" OEM rear connection, with a choice of Performance or GREEN cats.\u003c\/p\u003e\u003cp\u003eSKUs: 2151H420, 2151H430\u003c\/p\u003e\u003ch2\u003eChoose the early-car header version\u003c\/h2\u003e\u003cp\u003eThe emissions fittings distinguish these packages from the C5 kits supplied without them. Both kits pair the 1-7\/8\" headers with their matching X-pipe and join the factory-style rear exhaust. The supported range for these exact two SKUs is 1997-2000.\u003c\/p\u003e\u003ch2\u003ePlan for your engine, including later modifications\u003c\/h2\u003e\u003cp\u003ePerformance cats are for naturally aspirated applications. GREEN is the catted choice here that supports forced induction. If a supercharger is already fitted or part of the plan, choose the catalyst for that completed engine rather than buying around the original factory specification.\u003c\/p\u003e\u003ch2\u003eChoose your configuration\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"variant-comparison\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eConfiguration\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSupplied arrangement\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ engine conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2151H420\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Cat Type: Performance Cats; Includes Emissions Fittings: Yes (1997-2000)\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; Performance Cats front connections\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2151H430\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Cat Type: GREEN Cats; Includes Emissions Fittings: Yes (1997-2000)\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; GREEN Cats front connections\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1997-2000\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette Base\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e2151H420, 2151H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1998\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette Indianapolis 500 Pace Car\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e2151H420, 2151H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKUs\u003c\/td\u003e\n\u003ctd\u003e2151H420, 2151H430\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e1997-2000 Corvette C5 5.7L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" primaries; 3\" collectors; emissions fittings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrossover\u003c\/td\u003e\n\u003ctd\u003eSupplied X-pipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear interface\u003c\/td\u003e\n\u003ctd\u003e2-1\/2\" OEM-style exhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChoices\u003c\/td\u003e\n\u003ctd\u003e2151H420 Performance; 2151H430 GREEN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePerformance use\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWhat is different about these C5 kits?\u003c\/h3\u003e\u003cp\u003eTheir headers include the emissions fittings for the supported 1997-2000 application.\u003c\/p\u003e\u003ch3\u003eDo they connect to the original rear exhaust?\u003c\/h3\u003e\u003cp\u003eThey use the 2-1\/2\" OEM-style rear interface.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003e2151H420: Competition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"1-7\/8\" \/ Performance Cats \/ Yes (1997-2000)","offer_id":55646887641430,"sku":"2151H420","price":3642.46,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\" \/ GREEN Cats \/ Yes (1997-2000)","offer_id":55646887674198,"sku":"2151H430","price":4210.45,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/4b2203dadef8ff2701713bae34f557c9_7b5f9661-8997-459f-88e2-fcabfedf6054.jpg?v=1791452449"},{"product_id":"kooks-1997-2004-c5-corvette-header-x-pipe-kits-d739b426","title":"Kooks Header and X-Pipe Kits for Corvette C5 (2001-2004)","description":"\u003ch2\u003eEnjoy more of your C5 with a complete header package\u003c\/h2\u003e\u003cp\u003eThe C5 has a V8 worth building an exhaust around. These Kooks packages combine stainless long tube headers and an X-pipe for the 2001-2004 Corvette 5.7 LS1 or LS6, with the emissions fittings for that year group. Choose the primary and catalyst combination for your engine, then use the supplied OEM rear connection to retain the compatible factory rear exhaust.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSKUs:\u003c\/strong\u003e 2152H220, 2152H230, 2152H420, 2152H430\u003c\/p\u003e\u003ch2\u003eThe correct emissions fittings for your year group\u003c\/h2\u003e\u003cp\u003eEvery option on this page is the version with emissions fittings for 2001-2004 cars. That matters when comparing C5 kits: an earlier-year version or a kit without those fittings is a different specification, even if the primary size looks the same.\u003c\/p\u003e\u003ch2\u003eChoose the catalyst for the engine\u003c\/h2\u003e\u003cp\u003eThe 1-3\/4\" and 1-7\/8\" primary options both use 3\" collectors. Performance Cats are for naturally aspirated applications; GREEN catalysts also support forced induction within their rating. Choose the engine and catalyst combination together before arranging the tune.\u003c\/p\u003e\u003ch2\u003eKeep the rear exhaust you already enjoy\u003c\/h2\u003e\u003cp\u003eThe X-pipe arrangement provides a 2-1\/2\" OEM rear connection, letting you retain the compatible factory rear exhaust as part of the long tube upgrade. Professional fitting is recommended, followed by checks for leaks, heat clearance and fasteners after the first heat cycle.\u003c\/p\u003e\u003ch2\u003eTuning for your header upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend a tune with these headers, matched to your engine and the completed exhaust. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eTalk to us about tuning\u003c\/a\u003e for your vehicle and modifications.\u003c\/p\u003e\u003ch2\u003eChoose your option\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eHeader Size\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eCat Type\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eIncludes Emissions Fittings\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ contents\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eStated use restriction\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2152H220\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\"\u003c\/td\u003e\n\u003ctd\u003ePerformance Cats\u003c\/td\u003e\n\u003ctd\u003eYes (2001-2004)\u003c\/td\u003e\n\u003ctd\u003eHeader pair and X-pipe; 2001-2004 emissions fittings included; 2-1\/2\" OEM rear outlet.\u003c\/td\u003e\n\u003ctd\u003eCompetition, off-road and track use only. Not for use on public roads.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2152H230\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\"\u003c\/td\u003e\n\u003ctd\u003eGREEN Cats\u003c\/td\u003e\n\u003ctd\u003eYes (2001-2004)\u003c\/td\u003e\n\u003ctd\u003eHeader pair and X-pipe; 2001-2004 emissions fittings included; 2-1\/2\" OEM rear outlet.\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2152H420\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\"\u003c\/td\u003e\n\u003ctd\u003ePerformance Cats\u003c\/td\u003e\n\u003ctd\u003eYes (2001-2004)\u003c\/td\u003e\n\u003ctd\u003eHeader pair and X-pipe; 2001-2004 emissions fittings included; 2-1\/2\" OEM rear outlet.\u003c\/td\u003e\n\u003ctd\u003eCompetition, off-road and track use only. Not for use on public roads.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2152H430\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\"\u003c\/td\u003e\n\u003ctd\u003eGREEN Cats\u003c\/td\u003e\n\u003ctd\u003eYes (2001-2004)\u003c\/td\u003e\n\u003ctd\u003eHeader pair and X-pipe; 2001-2004 emissions fittings included; 2-1\/2\" OEM rear outlet.\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle and trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU \/ fitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001-2004\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette Z06\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e2152H220, 2152H230, 2152H420, 2152H430\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001-2004\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette Base\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e2152H220, 2152H230, 2152H420, 2152H430\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette 50th Anniversary Edition\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e2152H220, 2152H230, 2152H420, 2152H430\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette 50th Anniversary Edition Pace Car\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e2152H220, 2152H230, 2152H420, 2152H430\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eCorvette C5, 2001-2004; 5.7 LS1 and LS6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeader design\u003c\/td\u003e\n\u003ctd\u003eStainless steel long tube headers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary diameter choices\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\" or 1-7\/8\" primary tubes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollector diameter\u003c\/td\u003e\n\u003ctd\u003e3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupplied exhaust parts\u003c\/td\u003e\n\u003ctd\u003eHeader pair and matching X-pipe arrangement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear connection\u003c\/td\u003e\n\u003ctd\u003e2-1\/2\" OEM rear-exhaust connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEmissions fittings\u003c\/td\u003e\n\u003ctd\u003eIncluded; 2001-2004 specification on every offered option\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalyst choices\u003c\/td\u003e\n\u003ctd\u003ePerformance Cats for naturally aspirated engines; GREEN Cats also support forced induction within their rating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTuning recommendation\u003c\/td\u003e\n\u003ctd\u003eHoonies recommends a tune for the completed header and exhaust installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eFAQs\u003c\/h2\u003e\u003ch3\u003eDoes this cover a 1999 C5?\u003c\/h3\u003e\u003cp\u003eThis particular listing supplies the 2001-2004 emissions-fitting versions. Choose the correct earlier-year package for a 1999 car.\u003c\/p\u003e\u003ch3\u003eDo all four options include the emissions fittings?\u003c\/h3\u003e\u003cp\u003eYes. The actual offered combinations all include the 2001-2004 emissions fittings.\u003c\/p\u003e\u003ch3\u003eCan I retain the factory rear exhaust?\u003c\/h3\u003e\u003cp\u003eYes, using the compatible 2-1\/2\" OEM rear connection.\u003c\/p\u003e\u003ch3\u003eCan Performance Cats be used with forced induction?\u003c\/h3\u003e\u003cp\u003eNo. Choose an appropriate GREEN catalyst option for a supercharged or turbocharged build.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"1-3\/4\" \/ Performance Cats \/ Yes (2001-2004)","offer_id":55646887870806,"sku":"2152H220","price":3537.56,"currency_code":"GBP","in_stock":true},{"title":"1-3\/4\" \/ GREEN Cats \/ Yes (2001-2004)","offer_id":55646887903574,"sku":"2152H230","price":4105.54,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\" \/ Performance Cats \/ Yes (2001-2004)","offer_id":55646887936342,"sku":"2152H420","price":3573.3,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\" \/ GREEN Cats \/ Yes (2001-2004)","offer_id":55646887969110,"sku":"2152H430","price":4141.29,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/4b2203dadef8ff2701713bae34f557c9_1ad7e21b-4ff0-45f0-93c5-577ed179f996.jpg?v=1791452451"},{"product_id":"kooks-2855h220","title":"Kooks GM 1500 4.8 \/ 5.3 Header Kit, 1-3\/4-inch (2009-2013) | 2855H220","description":"\u003ch2\u003eChoose a complete front exhaust upgrade for your GM V8\u003c\/h2\u003e\u003cp\u003ePair 1-3\/4\" Kooks long tube headers with a Performance-catted Y-pipe for your supported 2009-2013 GM truck or SUV. The stainless kit joins the 2-3\/4\" OEM rear interface, letting a compatible rear exhaust remain in place.\u003c\/p\u003e\u003cp\u003eSKU: 2855H220\u003c\/p\u003e\u003ch2\u003eThe smaller-primary package\u003c\/h2\u003e\u003cp\u003eThe 1-3\/4\" primaries lead into 3\" collectors and the supplied 3\" Y-pipe. This kit gives you that primary choice alongside the separate 1-7\/8\" package, so you can select around your engine and intended modifications.\u003c\/p\u003e\u003ch2\u003eHeaders and connections in one purchase\u003c\/h2\u003e\u003cp\u003eThe front Y-pipe is part of the kit, with Performance cats specified for naturally aspirated engines. Its 2-3\/4\" rear outlet matches the factory-style interface for the supported applications.\u003c\/p\u003e\u003ch2\u003eFitting your exhaust\u003c\/h2\u003e\u003cp\u003eSome installations with 90-degree spark-plug boots need the wires modified as shown in the fitting guide, or replaced with suitable aftermarket wires.\u003c\/p\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 WT\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LT\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LTZ\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 WT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LS\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LS\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 XFE\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Suburban 1500 LTZ\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Suburban 1500 LT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Suburban 1500 LS\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Tahoe LTZ\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Tahoe LT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Tahoe LS\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009\u003c\/td\u003e\n\u003ctd\u003eChevrolet Tahoe LS\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Tahoe PPV\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 SL\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 WT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 SLE\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 WT\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 SLE\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 SLT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010-2013\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 SL\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010-2013\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 XFE\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon SLE\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon SLT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon SLE\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon XL 1500 SLT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon XL 1500 SLE\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e2855H220\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplications\u003c\/td\u003e\n\u003ctd\u003eListed 2009-2013 GM 1500 trucks and SUVs, 4.8L \/ 5.3L V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eY-pipe\u003c\/td\u003e\n\u003ctd\u003e3\" Performance-catted stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003e2-3\/4\" OEM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalyst condition\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpark-plug wire clearance\u003c\/td\u003e\n\u003ctd\u003eSome 90-degree-boot installations require wire modification or suitable replacement wires\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWhat changes compared with 2855H420?\u003c\/h3\u003e\u003cp\u003eThis kit has 1-3\/4\" primaries. 2855H420 has 1-7\/8\" primaries.\u003c\/p\u003e\u003ch3\u003eIs this suitable for a turbocharger?\u003c\/h3\u003e\u003cp\u003eThe supplied Performance cats are for naturally aspirated engines. Choose a catalyst package suitable for forced induction for that setup.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003eCompetition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":55646888657238,"sku":"2855H220","price":3164.66,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/3e54f8a12df5579285a7f600ad120030_2593a65c-83d9-4fb4-8570-7bd69724cf14.jpg?v=1791452453"},{"product_id":"kooks-2855h420","title":"Kooks GM 1500 4.8 \/ 5.3 Header Kit, 1-7\/8-inch (2009-2013) | 2855H420","description":"\u003ch2\u003eUpgrade your GM V8 with headers and connections matched together\u003c\/h2\u003e\u003cp\u003eGive your supported 2009-2013 GM truck or SUV a Kooks front exhaust conversion with 1-7\/8\" long tube headers and a Performance-catted Y-pipe. The 304 stainless package joins the 2-3\/4\" OEM rear interface for the listed 4.8- and 5.3-litre applications.\u003c\/p\u003e\u003cp\u003eSKU: 2855H420\u003c\/p\u003e\u003ch2\u003eKeep the rear system that suits your truck\u003c\/h2\u003e\u003cp\u003eThe headers have 3\" collectors feeding the supplied 3\" Y-pipe. Its 2-3\/4\" rear outlet makes the connection to an exhaust using the factory interface, so the front upgrade can work with a retained cat-back.\u003c\/p\u003e\u003ch2\u003eChoose the primary around your engine\u003c\/h2\u003e\u003cp\u003eThis is the 1-7\/8\" package. The separate 2855H220 kit uses 1-3\/4\" headers. Choose around your engine modifications rather than assuming the larger primary is always the better choice. Performance cats are for naturally aspirated engines.\u003c\/p\u003e\u003ch2\u003eFitting your exhaust\u003c\/h2\u003e\u003cp\u003eSome installations with 90-degree spark-plug boots need the wires modified as shown in the fitting guide, or replaced with suitable aftermarket wires.\u003c\/p\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LT\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 WT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LTZ\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LS\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 WT\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LS\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 XFE\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Suburban 1500 LS\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Suburban 1500 LT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Suburban 1500 LTZ\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Tahoe LS\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Tahoe LT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Tahoe LTZ\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009\u003c\/td\u003e\n\u003ctd\u003eChevrolet Tahoe LS\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Tahoe PPV\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 SL\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 SLE\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 SLE\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 WT\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 WT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 SLT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010-2013\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 SL\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010-2013\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 XFE\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon SLT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon SLE\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon SLE\u003c\/td\u003e\n\u003ctd\u003e4.8L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon XL 1500 SLT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon XL 1500 SLE\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e2855H420\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplications\u003c\/td\u003e\n\u003ctd\u003eListed 2009-2013 GM 1500 trucks and SUVs, 4.8L \/ 5.3L V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eY-pipe\u003c\/td\u003e\n\u003ctd\u003e3\" Performance-catted stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003e2-3\/4\" OEM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalyst condition\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpark-plug wire clearance\u003c\/td\u003e\n\u003ctd\u003eSome 90-degree-boot installations require wire modification or suitable replacement wires\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs the Y-pipe included in the kit?\u003c\/h3\u003e\u003cp\u003eYes. It is supplied with the long tube headers.\u003c\/p\u003e\u003ch3\u003eWhat is the smaller-primary alternative?\u003c\/h3\u003e\u003cp\u003e2855H220 is the separate 1-3\/4\" header and Performance Y-pipe kit for the supported applications.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003eCompetition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":55646888919382,"sku":"2855H420","price":3367.92,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/73dc1e0ef0acd40f54f5cac694a74599_aeefbccc-20b7-4635-b138-6da3f8a507a7.jpg?v=1791452454"},{"product_id":"kooks-2005-2013-c6-corvette-base-grand-sport-header-conn-kits-0b013382","title":"Kooks Corvette C6 LS2 \/ LS3 Header and X-Pipe Kits (2005-2008)","description":"\u003ch2\u003eUpgrade your early C6 with the right matched kit\u003c\/h2\u003e\u003cp\u003eEnjoy a proper front exhaust upgrade on your early C6 with Kooks long tube headers and a matching X-pipe. These are the 2005-2008 packages for the supported LS2\/LS3 applications, with a 2-1\/2\" OEM-style rear connection and a choice of header size and catalyst.\u003c\/p\u003e\u003cp\u003eSKUs: 2160H221, 2160H421, 2160H431\u003c\/p\u003e\u003ch2\u003eChoose the early-car connection kit\u003c\/h2\u003e\u003cp\u003eThe 1-3\/4\" and 1-7\/8\" headers use 3\" collectors. Their supplied X-pipes transition to the 2-1\/2\" rear interface. The later 2009-2013 LS3 kits are separate products, so choose this early-C6 set by model year as well as engine capacity.\u003c\/p\u003e\u003ch2\u003eThree useful combinations\u003c\/h2\u003e\u003cp\u003eChoose 1-3\/4\" Performance, 1-7\/8\" Performance or 1-7\/8\" GREEN. The Performance cats are for naturally aspirated engines. GREEN is the catted choice here if you are running or planning forced induction.\u003c\/p\u003e\u003ch2\u003eChoose your configuration\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"variant-comparison\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eConfiguration\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSupplied arrangement\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ engine conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2160H221\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-3\/4\"; Cat Type: Performance Cats; Model Year: 2005-2008\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\" headers; Performance Cats front connections\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2160H421\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Cat Type: Performance Cats; Model Year: 2005-2008\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; Performance Cats front connections\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2160H431\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Cat Type: GREEN Cats; Model Year: 2005-2008\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; GREEN Cats front connections\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2005-2007\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette Base\u003c\/td\u003e\n\u003ctd\u003e6.0L V8\u003c\/td\u003e\n\u003ctd\u003e2160H221, 2160H421, 2160H431\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette Base\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2160H221, 2160H421, 2160H431\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKUs\u003c\/td\u003e\n\u003ctd\u003e2160H221, 2160H421, 2160H431\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2005-2008 C6, supported LS2 6.0L \/ LS3 6.2L years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary choices\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\" Performance; 1-7\/8\" Performance or GREEN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollectors\u003c\/td\u003e\n\u003ctd\u003e3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear interface\u003c\/td\u003e\n\u003ctd\u003e2-1\/2\" OEM-style exhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePerformance condition\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWill these kits cover a 2010 Grand Sport?\u003c\/h3\u003e\u003cp\u003eChoose the separate 2009-2013 LS3 kits for that application. These SKUs use the 2005-2008 installation.\u003c\/p\u003e\u003ch3\u003eIs the catted X-pipe included?\u003c\/h3\u003e\u003cp\u003eYes. Each package supplies the headers and its matched X-pipe.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003e2160H221, 2160H421: Competition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"1-3\/4\" \/ Performance Cats \/ 2005-2008","offer_id":55646889148758,"sku":"2160H221","price":3402.24,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\" \/ Performance Cats \/ 2005-2008","offer_id":55646889181526,"sku":"2160H421","price":3438.05,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\" \/ GREEN Cats \/ 2005-2008","offer_id":55646889214294,"sku":"2160H431","price":4006.03,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/ae8f75fe2b5dae3fad5a15c3a33be243_cd568884-fee9-465c-b41c-bf5693c05e7c.jpg?v=1791452454"},{"product_id":"kooks-2005-2013-c6-corvette-base-grand-sport-header-conn-kits-b3fbc83d","title":"Kooks Corvette C6 LS3 Header and X-Pipe Kits (2009-2013)","description":"\u003ch2\u003eGive your LS3 Corvette a more complete exhaust upgrade\u003c\/h2\u003e\u003cp\u003eUpgrade your 2009-2013 LS3 C6 with Kooks long tube headers and the matching catted X-pipe. Choose 1-3\/4\" or 1-7\/8\" headers and the supported catalyst combination, while keeping a rear exhaust with the 2-1\/2\" OEM-style connection.\u003c\/p\u003e\u003cp\u003eSKUs: 2160H222, 2160H422, 2160H432\u003c\/p\u003e\u003ch2\u003eHeaders and X-pipe matched for the later C6\u003c\/h2\u003e\u003cp\u003eThese three SKUs are the 2009-2013 LS3 kits. Both header sizes have 3\" collectors, and the X-pipe includes the rear transition to the 2-1\/2\" factory-style exhaust. Choosing the kit for this year range matters even when the earlier C6 has the same 6.2-litre badge.\u003c\/p\u003e\u003ch2\u003eChoose the catalyst around your modifications\u003c\/h2\u003e\u003cp\u003eThe 1-3\/4\" choice uses Performance cats. The 1-7\/8\" choice is available with Performance or GREEN cats. Choose GREEN for a forced-induction build; the Performance-catted arrangements are for naturally aspirated use.\u003c\/p\u003e\u003ch2\u003eChoose your configuration\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"variant-comparison\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eConfiguration\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSupplied arrangement\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ engine conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2160H222\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-3\/4\"; Cat Type: Performance Cats; Model Year: 2009-2013\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\" headers; Performance Cats front connections\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2160H422\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Cat Type: Performance Cats; Model Year: 2009-2013\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; Performance Cats front connections\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2160H432\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Cat Type: GREEN Cats; Model Year: 2009-2013\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; GREEN Cats front connections\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette Base\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2160H222, 2160H422, 2160H432\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette Grand Sport\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2160H222, 2160H422, 2160H432\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKUs\u003c\/td\u003e\n\u003ctd\u003e2160H222, 2160H422, 2160H432\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2009-2013 Corvette C6 LS3 6.2L; Base \/ Grand Sport trims as listed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary choices\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\" Performance; 1-7\/8\" Performance or GREEN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollectors\u003c\/td\u003e\n\u003ctd\u003e3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear connection\u003c\/td\u003e\n\u003ctd\u003e2-1\/2\" OEM-style exhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePerformance catalyst condition\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eAre these the 2005-2008 kits?\u003c\/h3\u003e\u003cp\u003eThese exact SKUs are for the 2009-2013 LS3 installation. The earlier C6 kits are listed separately.\u003c\/p\u003e\u003ch3\u003eCan I retain my current rear exhaust?\u003c\/h3\u003e\u003cp\u003eYes, when it uses the 2-1\/2\" OEM-style connection.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003e2160H222, 2160H422: Competition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"1-3\/4\" \/ Performance Cats \/ 2009-2013","offer_id":55646889410902,"sku":"2160H222","price":3420.55,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\" \/ Performance Cats \/ 2009-2013","offer_id":55646889443670,"sku":"2160H422","price":3456.36,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\" \/ GREEN Cats \/ 2009-2013","offer_id":55646889476438,"sku":"2160H432","price":4024.35,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/ae8f75fe2b5dae3fad5a15c3a33be243_1201160a-5b0e-4def-b66c-99359dfdf249.jpg?v=1791452455"},{"product_id":"kooks-2006-2013-c6-corvette-z06-zr1-header-conn-kits-e1b88988","title":"Kooks Corvette C6 Z06 LS7 Performance Header Kit (2006-2013) | 2161H421","description":"\u003ch2\u003eEnjoy more of what makes your LS7 Z06 special\u003c\/h2\u003e\u003cp\u003eGive your naturally aspirated LS7 a matched Kooks front exhaust upgrade. This package combines 1-7\/8\" long tube headers with a Performance-catted stainless X-pipe, joining the 3\" OEM Z06-style rear exhaust rather than the smaller base-Corvette interface.\u003c\/p\u003e\u003cp\u003eSKU: 2161H421\u003c\/p\u003e\u003ch2\u003eThe right rear connection for your Z06\u003c\/h2\u003e\u003cp\u003eThe headers use 3\" collectors, and the supplied X-pipe keeps the 3\" outlet needed by the Z06 rear exhaust. That interface matters when choosing between C6 kits that look similar but connect to different rear systems.\u003c\/p\u003e\u003ch2\u003eBuilt around the naturally aspirated LS7\u003c\/h2\u003e\u003cp\u003ePerformance cats are specified for naturally aspirated engines. This is the 7.0-litre Z06 kit; a supercharged ZR1 or a boosted LS7 needs the appropriate forced-induction catalyst choice.\u003c\/p\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e2006-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette Z06\u003c\/td\u003e\n\u003ctd\u003e7.0L V8\u003c\/td\u003e\n\u003ctd\u003e2161H421\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e2161H421\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2006-2013 Corvette C6 Z06, 7.0L LS7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eX-pipe\u003c\/td\u003e\n\u003ctd\u003ePerformance-catted stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003e3\" OEM Z06-style interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalyst condition\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eDoes this use the base Corvette rear connection?\u003c\/h3\u003e\u003cp\u003eIt uses the 3\" OEM Z06-style rear connection.\u003c\/p\u003e\u003ch3\u003eIs this suitable for a supercharged ZR1?\u003c\/h3\u003e\u003cp\u003eChoose a kit with catalysts specified for forced induction. This Performance-catted package is for the naturally aspirated LS7.\u003c\/p\u003e\u003ch3\u003eDo you recommend tuning with these headers?\u003c\/h3\u003e\u003cp\u003eWe recommend tuning with every header installation. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eTalk to us\u003c\/a\u003e about calibration for your vehicle, exhaust and other modifications.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003eCompetition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"1-7\/8\" \/ Performance Cats","offer_id":55646890525014,"sku":"2161H421","price":3479.22,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/025872542e6740b7330221676e7b96ad_a0ce0ed9-51f7-426a-b95c-046a03ef8259.jpg?v=1791452459"},{"product_id":"kooks-2014-2018-gm-1500-series-header-connection-kits-510158cf","title":"Kooks GM 1500 \/ SUV 5.3L Header and Y-Pipe Kits","description":"\u003ch2\u003eMake your 5.3 V8 an even bigger part of the enjoyment\u003c\/h2\u003e\u003cp\u003eUpgrade your GM truck or SUV with long tube headers and a Y-pipe chosen together for the 5.3-litre engine. These Kooks kits connect to the 2-3\/4\" OEM rear interface and offer three real combinations, covering the listed 2014-2018 trucks and 2015-2020 SUVs.\u003c\/p\u003e\u003cp\u003eSKUs: 2860H220, 2860H420, 2860H430\u003c\/p\u003e\u003ch2\u003eCompare the three packages\u003c\/h2\u003e\u003cp\u003e2860H220 pairs 1-3\/4\" headers with Performance cats. 2860H420 uses 1-7\/8\" headers with Performance cats. 2860H430 pairs 1-7\/8\" headers with GREEN cats. Each kit uses 3\" collectors and a matching stainless Y-pipe.\u003c\/p\u003e\u003ch2\u003eKeep the catalyst suited to your engine\u003c\/h2\u003e\u003cp\u003eChoose Performance cats for a naturally aspirated setup or GREEN for a forced-induction build. The rear interface is common to these 5.3 kits, so you can keep the factory-style rear exhaust while choosing the front arrangement around the engine you want to build.\u003c\/p\u003e\u003ch2\u003eChoose your configuration\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"variant-comparison\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eConfiguration\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSupplied arrangement\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ engine conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2860H220\u003c\/td\u003e\n\u003ctd\u003eEngine Size: 5.3L; Header Size: 1-3\/4\"; Cat Type: Performance Cats\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\" headers; Performance Cats front connections\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2860H420\u003c\/td\u003e\n\u003ctd\u003eEngine Size: 5.3L; Header Size: 1-7\/8\"; Cat Type: Performance Cats\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; Performance Cats front connections\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2860H430\u003c\/td\u003e\n\u003ctd\u003eEngine Size: 5.3L; Header Size: 1-7\/8\"; Cat Type: GREEN Cats\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; GREEN Cats front connections\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eChevrolet Suburban LS\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2860H220, 2860H420, 2860H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eChevrolet Suburban LT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2860H220, 2860H420, 2860H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2016\u003c\/td\u003e\n\u003ctd\u003eChevrolet Suburban LTZ\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2860H220, 2860H420, 2860H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2020\u003c\/td\u003e\n\u003ctd\u003eChevrolet Suburban Premier\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2860H220, 2860H420, 2860H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014-2018\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 WT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2860H220, 2860H420, 2860H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014-2018\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 High Country\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2860H220, 2860H420, 2860H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014-2018\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LTZ\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2860H220, 2860H420, 2860H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014-2018\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2860H220, 2860H420, 2860H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2018\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LS\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2860H220, 2860H420, 2860H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016-2018\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 Custom\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2860H220, 2860H420, 2860H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eChevrolet Tahoe LS\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2860H220, 2860H420, 2860H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eChevrolet Tahoe LT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2860H220, 2860H420, 2860H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2016\u003c\/td\u003e\n\u003ctd\u003eChevrolet Tahoe LTZ\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2860H220, 2860H420, 2860H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016-2017\u003c\/td\u003e\n\u003ctd\u003eChevrolet Tahoe Z71\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2860H220, 2860H420, 2860H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2020\u003c\/td\u003e\n\u003ctd\u003eChevrolet Tahoe Premier\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2860H220, 2860H420, 2860H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018\u003c\/td\u003e\n\u003ctd\u003eChevrolet Tahoe Midnight Edition\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2860H220, 2860H420, 2860H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon XL SLT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2860H220, 2860H420, 2860H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon XL SLE\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2860H220, 2860H420, 2860H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014-2018\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 SLE\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2860H220, 2860H420, 2860H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014-2018\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 SLT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2860H220, 2860H420, 2860H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014-2018\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 Denali\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2860H220, 2860H420, 2860H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014-2018\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 Base\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2860H220, 2860H420, 2860H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon SLE\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2860H220, 2860H420, 2860H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon SLT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2860H220, 2860H420, 2860H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKUs\u003c\/td\u003e\n\u003ctd\u003e2860H220, 2860H420, 2860H430\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplications\u003c\/td\u003e\n\u003ctd\u003eListed 2014-2018 GM 1500 trucks \/ 2015-2020 SUVs, 5.3L V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary choices\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\" or 1-7\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollectors\/Y-pipe\u003c\/td\u003e\n\u003ctd\u003e3\" collectors; supplied catted Y-pipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003e2-3\/4\" OEM interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalysts\u003c\/td\u003e\n\u003ctd\u003ePerformance or GREEN in the actual combinations shown\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePerformance condition\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eDoes the 1-3\/4-inch choice have GREEN cats?\u003c\/h3\u003e\u003cp\u003eThe 1-3\/4\" kit on this page is Performance catted. The GREEN choice here uses 1-7\/8\" headers.\u003c\/p\u003e\u003ch3\u003eAre SUV years different from truck years?\u003c\/h3\u003e\u003cp\u003eYes. The vehicle table covers the individual truck and SUV models and their model years.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003e2860H220, 2860H420: Competition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"5.3L \/ 1-3\/4\" \/ Performance Cats","offer_id":55646890623318,"sku":"2860H220","price":3408.4,"currency_code":"GBP","in_stock":true},{"title":"5.3L \/ 1-7\/8\" \/ Performance Cats","offer_id":55646890656086,"sku":"2860H420","price":3454.85,"currency_code":"GBP","in_stock":true},{"title":"5.3L \/ 1-7\/8\" \/ GREEN Cats","offer_id":55646890688854,"sku":"2860H430","price":4022.83,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/4d0eb87562406b568adf94b6bae459a0_f79ebfda-e730-4c32-be00-73e4daaf02bc.jpg?v=1791452459"},{"product_id":"kooks-2006-2013-c6-corvette-z06-zr1-header-conn-kits-94ab259c","title":"Kooks Corvette C6 Z06 \/ ZR1 GREEN Header and X-Pipe Kits","description":"\u003ch2\u003eMake your Z06 or ZR1 even more rewarding to drive\u003c\/h2\u003e\u003cp\u003eThere is plenty to love about an LS7 Z06 or supercharged LS9 ZR1. A Kooks header-and-X-pipe kit gives you a matched front exhaust upgrade for that engine, with a 3\" rear connection for the Z06\/ZR1-style exhaust. Choose 1-7\/8\" or 2\" headers, or the 2\" Street\/Strip package with two front-pipe arrangements.\u003c\/p\u003e\u003cp\u003eSKUs: 2161H431, 2161H631, 2161H6SS\u003c\/p\u003e\u003ch2\u003eChoose the package for your build\u003c\/h2\u003e\u003cp\u003e2161H431 pairs 1-7\/8\" headers with a GREEN catted X-pipe. 2161H631 uses 2\" headers with GREEN cats. Street\/Strip SKU 2161H6SS adds H.O. GREEN cats and a separate set of Competition Only front connections for track-only use. It is a more complete purchase than simply selecting a larger header.\u003c\/p\u003e\u003ch2\u003eA proper match for the rear exhaust\u003c\/h2\u003e\u003cp\u003eThe GREEN kit outlets connect to the 3\" OEM Z06\/ZR1-style rear exhaust. Choose the header size around your engine and its modifications rather than assuming the largest tube is always the best choice. The Street\/Strip package also includes the gaskets, O2 extension harness, clamps and bolt kit needed for its installation.\u003c\/p\u003e\u003ch2\u003eChoose your configuration\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"variant-comparison\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eConfiguration\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSupplied arrangement\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ engine conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2161H431\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Cat Type: GREEN Cats\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; GREEN catted X-pipe; 3\" OEM Z06\/ZR1 rear outlet.\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2161H631\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 2\"; Cat Type: GREEN Cats\u003c\/td\u003e\n\u003ctd\u003e2\" headers; GREEN catted X-pipe; 3\" OEM Z06\/ZR1 rear outlet.\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2161H6SS\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 2\"; Cat Type: Street\/Strip\u003c\/td\u003e\n\u003ctd\u003e2\" headers; H.O. GREEN catted OEM X-pipe plus separate Competition Only front pipes; gaskets, O2 extensions, clamps and bolts included.\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eMatching products\u003c\/h2\u003e\u003cp\u003eIf you also want a carbon-tip rear upgrade, the \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/products\/kooks-21606750?variant=55646888984918\"\u003eC6 Z06\/ZR1 axle-back\u003c\/a\u003e is a separate rear exhaust option for the supported Z06 and ZR1 applications.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette Z06\u003c\/td\u003e\n\u003ctd\u003e7.0L V8\u003c\/td\u003e\n\u003ctd\u003e2161H431, 2161H631, 2161H6SS\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette ZR1\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2161H431, 2161H631, 2161H6SS\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKUs\u003c\/td\u003e\n\u003ctd\u003e2161H431, 2161H631, 2161H6SS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplications\u003c\/td\u003e\n\u003ctd\u003e2006-2013 Z06 7.0L LS7; 2009-2013 ZR1 6.2L LS9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary choices\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" or 2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollector\/rear interface\u003c\/td\u003e\n\u003ctd\u003e3\" collectors; 3\" OEM Z06\/ZR1-style rear connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStreet\/Strip cats\u003c\/td\u003e\n\u003ctd\u003e4-1\/2\"-bodied H.O. GREEN; 300-cell substrate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStreet\/Strip extras\u003c\/td\u003e\n\u003ctd\u003eCompetition Only front pipes; gaskets, O2 extension harness, clamps and bolt kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWhat makes Street\/Strip different?\u003c\/h3\u003e\u003cp\u003eIt includes a catted H.O. GREEN front arrangement and separate Competition Only pipes that can be swapped in for track-only use.\u003c\/p\u003e\u003ch3\u003eWill this connect to a standard 2-1\/2\" C6 rear exhaust?\u003c\/h3\u003e\u003cp\u003eThese kits use the 3\" Z06\/ZR1-style rear interface. The base C6 kits use a different rear connection.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003e2161H6SS: Competition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003cp\u003eThe competition-use waiver applies to 2161H6SS.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"1-7\/8\" \/ GREEN Cats","offer_id":55646890787158,"sku":"2161H431","price":4047.21,"currency_code":"GBP","in_stock":true},{"title":"2\" \/ GREEN Cats","offer_id":55646890819926,"sku":"2161H631","price":4088.38,"currency_code":"GBP","in_stock":true},{"title":"2\" \/ Street\/Strip","offer_id":55646890852694,"sku":"2161H6SS","price":4835.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/025872542e6740b7330221676e7b96ad_0c3bcddd-c4f9-4b27-8338-68bda67ea3d1.jpg?v=1791452460"},{"product_id":"kooks-2014-2018-gm-1500-series-header-connection-kits-00b388c0","title":"Kooks GM 1500 \/ SUV 6.2L Header and Y-Pipe Kits","description":"\u003ch2\u003eMake more of the V8 in your truck or SUV\u003c\/h2\u003e\u003cp\u003eBring a matched Kooks header and Y-pipe upgrade to your 6.2-litre GM. These kits pair 1-7\/8\" long tube headers with a 3\" Y-pipe, finishing at the 3-1\/2\" OEM rear interface. Choose Performance or GREEN cats for the listed 2014-2018 trucks and 2015-2020 SUVs.\u003c\/p\u003e\u003cp\u003eSKUs: 2861H420, 2861H430\u003c\/p\u003e\u003ch2\u003eChoose around the engine you use\u003c\/h2\u003e\u003cp\u003eBoth packages use the same primary size and rear connection. The Performance-catted 2861H420 is for naturally aspirated engines, while GREEN-catted 2861H430 supports forced induction. That is a useful choice if a supercharger is fitted or planned.\u003c\/p\u003e\u003ch2\u003eKeep the rear exhaust you already enjoy\u003c\/h2\u003e\u003cp\u003eThe 3-1\/2\" OEM rear outlet joins a compatible factory-style rear system. You can upgrade the headers and front pipework together while keeping the cat-back you already like.\u003c\/p\u003e\u003ch2\u003eChoose your configuration\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"variant-comparison\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eConfiguration\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSupplied arrangement\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ engine conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2861H420\u003c\/td\u003e\n\u003ctd\u003eEngine Size: 6.2L; Header Size: 1-7\/8\"; Cat Type: Performance Cats\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; Performance Cats front connections\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2861H430\u003c\/td\u003e\n\u003ctd\u003eEngine Size: 6.2L; Header Size: 1-7\/8\"; Cat Type: GREEN Cats\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; GREEN Cats front connections\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eCadillac Escalade ESV Premium\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eCadillac Escalade ESV Platinum\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eCadillac Escalade ESV Luxury\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eCadillac Escalade ESV Base\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2020\u003c\/td\u003e\n\u003ctd\u003eCadillac Escalade ESV Premium Luxury\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eCadillac Escalade Platinum\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eCadillac Escalade Luxury\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eCadillac Escalade Base\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2017\u003c\/td\u003e\n\u003ctd\u003eCadillac Escalade Premium\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2020\u003c\/td\u003e\n\u003ctd\u003eCadillac Escalade Premium Luxury\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2020\u003c\/td\u003e\n\u003ctd\u003eChevrolet Suburban Premier\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014-2018\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LTZ\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014-2018\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 High Country\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018-2020\u003c\/td\u003e\n\u003ctd\u003eChevrolet Tahoe Premier\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon XL Denali\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2020\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon XL SLT\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014-2018\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 SLT\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014-2018\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 Denali\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon Denali\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2020\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon SLT\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKUs\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplications\u003c\/td\u003e\n\u003ctd\u003e2014-2018 GM 1500 trucks; listed 2015-2020 SUVs, 6.2L V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupplied Y-pipe\u003c\/td\u003e\n\u003ctd\u003e3\" Performance or GREEN catted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003e3-1\/2\" OEM interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePerformance catalyst condition\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWhich kit suits a supercharged engine?\u003c\/h3\u003e\u003cp\u003eChoose the GREEN-catted 2861H430 from these options.\u003c\/p\u003e\u003ch3\u003eAre the truck and SUV years the same?\u003c\/h3\u003e\u003cp\u003eNo. The truck range is 2014-2018; the listed SUV applications use their own 2015-2020 trim ranges in the table.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003e2861H420: Competition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"6.2L \/ 1-7\/8\" \/ Performance Cats","offer_id":55646891376982,"sku":"2861H420","price":3490.92,"currency_code":"GBP","in_stock":true},{"title":"6.2L \/ 1-7\/8\" \/ GREEN Cats","offer_id":55646891409750,"sku":"2861H430","price":4058.91,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/4d0eb87562406b568adf94b6bae459a0_475ef35a-4f9d-47da-b6d6-1accbdc1f23c.jpg?v=1791452461"},{"product_id":"kooks-2019-gm-1500-series-header-connection-kits-660b28c0","title":"Kooks GM 1500 5.3L Performance-Catted Header and Y-Pipe Kit (2019+) | 2862H420","description":"\u003ch2\u003eGive your 5.3-litre truck a proper front exhaust upgrade\u003c\/h2\u003e\u003cp\u003eUpgrade your 5.3-litre GM V8 with 1-7\/8-inch Kooks long tube headers and a matching Performance-catted Y-pipe. Its 2-3\/4-inch OEM outlet lets you keep a compatible rear exhaust.\u003c\/p\u003e\u003cp\u003eSKU: 2862H420\u003c\/p\u003e\u003ch2\u003eThe rear connection is matched to the 5.3\u003c\/h2\u003e\u003cp\u003eThe kit uses 3\" collectors and a 3\" Y-pipe before reducing to the 2-3\/4\" OEM rear interface. That outlet is different from the equivalent 6.2 kit, so the 5.3 engine specification matters when choosing the complete package.\u003c\/p\u003e\u003ch2\u003eChoose the cats for your engine\u003c\/h2\u003e\u003cp\u003ePerformance cats suit a naturally aspirated 5.3-litre engine. For a supercharged or turbocharged truck, choose a catalyst package designed for forced induction. You can match your model, trim and year in the vehicle table.\u003c\/p\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eChevrolet Suburban\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2862H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LTZ\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2862H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LT Trail Boss\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2862H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 RST\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2862H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 Custom Trail Boss\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2862H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 High Country\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2862H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2862H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 WT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2862H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2022\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 Custom\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2862H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eChevrolet Tahoe\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2862H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon XL\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2862H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 Elevation\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2862H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 Denali\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2862H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2022\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 SLT\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2862H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2022\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 SLE\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2862H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2021\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 AT4\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2862H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2021\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 Base\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2862H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2022-2024\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 Pro\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2862H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2862H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e2862H420\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupplied Y-pipe\u003c\/td\u003e\n\u003ctd\u003e3\" Performance-catted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003e2-3\/4\" OEM interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalyst condition\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs this interchangeable with the 6.2 kit?\u003c\/h3\u003e\u003cp\u003eThe engine application and rear outlet differ. This 5.3 kit uses the 2-3\/4\" OEM rear interface.\u003c\/p\u003e\u003ch3\u003eAre the front pipes included?\u003c\/h3\u003e\u003cp\u003eYes. The matching catted Y-pipe is supplied with the headers.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003eCompetition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"5.3L \/ 1-7\/8\" \/ Performance Cats","offer_id":55646892425558,"sku":"2862H420","price":4091.08,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/5e8d8a527404da993c9b14fca0e8fd49_0141e599-c7e2-4a63-ad9a-26dadef7f33c.png?v=1791452465"},{"product_id":"kooks-2014-2019-c7-corvette-header-conn-kits-e4b7af7c","title":"Kooks Corvette C7 LT1 Performance-Catted Header Kits (2014-2019)","description":"\u003ch2\u003eGive your naturally aspirated Stingray more room to breathe\u003c\/h2\u003e\u003cp\u003eThese Kooks kits bring the headers and catted X-pipe together for your LT1-powered C7. Choose conventional 1-7\/8\" primaries or a stepped 1-7\/8\" to 2\" design, with both kits connecting to the 2-3\/4\" OEM-style rear exhaust. They are Performance-catalyst packages for naturally aspirated builds.\u003c\/p\u003e\u003cp\u003eSKUs: 2170H420, 2170H520\u003c\/p\u003e\u003ch2\u003eTwo header designs, one rear connection\u003c\/h2\u003e\u003cp\u003e2170H420 uses 1-7\/8\" primaries. 2170H520 steps from 1-7\/8\" to 2\". Both use 3\" collectors and a supplied catted X-pipe with the 2-3\/4\" OEM rear outlet. Choose the header design as part of your complete engine setup; a stepped tube is a design choice rather than a guaranteed horsepower figure.\u003c\/p\u003e\u003cp\u003eThe mid-pipe clamp studs may need trimming to clear the belly pan. Your installer should check this before refitting the pan.\u003c\/p\u003e\u003ch2\u003eChoose the cats for your naturally aspirated LT1\u003c\/h2\u003e\u003cp\u003eThe Performance cats are for a naturally aspirated LT1. If you are planning forced induction, choose an appropriate GREEN or H.O. GREEN package for that engine setup.\u003c\/p\u003e\u003ch2\u003eChoose your configuration\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"variant-comparison\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eConfiguration\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSupplied arrangement\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ engine conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2170H420\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Cat Type: Performance Cats\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; Performance Cats front connections\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2170H520\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\" x 2\" Stepped; Cat Type: Performance Cats\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" x 2\" Stepped headers; Performance Cats front connections\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning when fitting headers. Explore our \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/products\/chevrolet-corvette-c7-ecu-and-tcm-tuning-2014-2019\"\u003eC7 ECU and TCM tuning\u003c\/a\u003e for your LT1 Corvette, or \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003econtact us\u003c\/a\u003e to discuss the new exhaust and your other modifications before booking.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014-2019\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette Stingray\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2170H420, 2170H520\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014-2016\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette Z51\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2170H420, 2170H520\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2019\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette Grand Sport\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2170H420, 2170H520\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKUs\u003c\/td\u003e\n\u003ctd\u003e2170H420, 2170H520\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2014-2019 Corvette C7, naturally aspirated 6.2L LT1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeader choices\u003c\/td\u003e\n\u003ctd\u003e2170H420: 1-7\/8\"; 2170H520: 1-7\/8\" stepping to 2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollectors\u003c\/td\u003e\n\u003ctd\u003e3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupplied crossover\u003c\/td\u003e\n\u003ctd\u003ePerformance-catted X-pipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003e2-3\/4\" OEM-style interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalyst condition\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only; not for forced induction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitting clearance\u003c\/td\u003e\n\u003ctd\u003eMid-pipe clamp studs may require trimming for belly-pan clearance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWhich kit has stepped primaries?\u003c\/h3\u003e\u003cp\u003e2170H520. Its primary tubing steps from 1-7\/8\" to 2\".\u003c\/p\u003e\u003ch3\u003eIs this the kit for a supercharged Z06?\u003c\/h3\u003e\u003cp\u003eThese Performance-catted packages are for naturally aspirated LT1 applications. Choose a catalyst arrangement suited to the supercharged LT4 for a Z06.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003eCompetition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"1-7\/8\" \/ Performance Cats","offer_id":55646892654934,"sku":"2170H420","price":3394.95,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\" x 2\" Stepped \/ Performance Cats","offer_id":55646892687702,"sku":"2170H520","price":4224.56,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/27eb14bcbd843819e0b82eddb1ff4e90_542ff30a-e6cf-43bd-9857-6f1c00d3dc51.jpg?v=1791452465"},{"product_id":"kooks-2019-gm-1500-series-header-connection-kits-f00ccd4d","title":"Kooks GM 1500 6.2L Ultra-GREEN Header and Y-Pipe Kit (2019-2023) | 2863H300","description":"\u003ch2\u003eUpgrade your V8 with the front exhaust already matched\u003c\/h2\u003e\u003cp\u003eEnjoy a substantial front exhaust upgrade without piecing together a header and Y-pipe combination yourself. This Kooks kit combines 1-3\/4\" long tube headers with an Ultra-GREEN catted Y-pipe and joins the 3-1\/2\" OEM rear interface. Gaskets and the bolt kit are included for the installation.\u003c\/p\u003e\u003cp\u003eSKU: 2863H300\u003c\/p\u003e\u003ch2\u003eUltra-GREEN connections included\u003c\/h2\u003e\u003cp\u003eThe supplied Y-pipe is made from 304 stainless steel and uses the Ultra-GREEN catalyst specification. The headers have 1-3\/4\" primaries and 3\" collectors. It is a complete matched front arrangement for the listed 6.2-litre applications, with the rear outlet sized for the OEM connection.\u003c\/p\u003e\u003ch2\u003eTuning for your completed engine\u003c\/h2\u003e\u003cp\u003eA tune is not required for this particular kit as supplied. We still recommend calibration advice around the headers, engine and other modifications, so the finished setup works together.\u003c\/p\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eA tune is not required for the specified installation, but we recommend tuning advice with every header upgrade. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e about your headers, other modifications and fuel so we can help you plan the completed setup.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eCadillac Escalade\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H300\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eChevrolet Suburban\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H300\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2023\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 High Country\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H300\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2023\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LTZ\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H300\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2023\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 RST\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H300\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LT Trail Boss\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H300\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2022-2023\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 ZR2\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H300\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon XL\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H300\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2023\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 SLT\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H300\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2023\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 AT4\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H300\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2023\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 Denali\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H300\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H300\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e2863H300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eListed 2019-2023 GM 1500 6.2L applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eY-pipe\u003c\/td\u003e\n\u003ctd\u003e3\" Ultra-GREEN catted pipework\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003e3-1\/2\" OEM interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitting parts\u003c\/td\u003e\n\u003ctd\u003eGaskets and bolt kit included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTuning\u003c\/td\u003e\n\u003ctd\u003eNot required for this supplied kit; we recommend a tune\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eDo I have to tune the vehicle to install this kit?\u003c\/h3\u003e\u003cp\u003eA tune is not required for 2863H300 as supplied. We recommend tuning with a header upgrade and can discuss calibration for your truck.\u003c\/p\u003e\u003ch3\u003eWhat is the header size?\u003c\/h3\u003e\u003cp\u003e1-3\/4\" primaries with 3\" collectors. This is a different configuration from the 1-7\/8\" GREEN kit.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"6.2L \/ 1-3\/4\" \/ ULTRA GREEN Cats","offer_id":55646892818774,"sku":"2863H300","price":4676.34,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/5e8d8a527404da993c9b14fca0e8fd49_83ebc7ac-cb58-4e19-ae4f-bc1f1f8b58dd.png?v=1791452465"},{"product_id":"kooks-2014-2019-c7-corvette-header-conn-kits-5e5f4d4d","title":"Kooks Header and X-Pipe Kits for Corvette C7 (2014-2019)","description":"\u003ch2\u003eMake your Corvette exhaust upgrade one complete package\u003c\/h2\u003e\u003cp\u003eGet the headers and X-pipe together, with the combination chosen for your C7 engine and rear exhaust. These Kooks packages cover the 2014-2019 Corvette LT1, LT4 and LT5 range, combining stainless long tube headers with a catted X-pipe and the OEM rear connection. Straight and stepped primary options let you choose the package for the engine you have or the build you are planning.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSKUs:\u003c\/strong\u003e 2170H430, 2170H440, 2170H530, 2170H630, 2170H640, 2170H6SS\u003c\/p\u003e\u003ch2\u003eChoose the header and catalyst together\u003c\/h2\u003e\u003cp\u003eThe stepped primary starts at 1-7\/8\" and increases to 2\"; the straight designs use either 1-7\/8\" or 2\" throughout the primary. All use 3\" collectors. GREEN and H.O. GREEN catalysts suit naturally aspirated and forced-induction applications within their ratings. H.O. GREEN uses a larger 4-1\/2\" body and 300 CPSI substrate, compared with the 4\" body and 400 CPSI substrate of GREEN.\u003c\/p\u003e\u003ch2\u003eKeep your compatible OEM rear exhaust\u003c\/h2\u003e\u003cp\u003eThe 3\" X-pipe finishes with a 2-3\/4\" OEM rear connection. You can upgrade from the cylinder heads through the X-pipe while retaining the factory rear exhaust, provided you select the correct package for your C7 application.\u003c\/p\u003e\u003ch2\u003eStreet\/Strip includes a separate track-pipe set\u003c\/h2\u003e\u003cp\u003eThe Street\/Strip option supplies 2\" primary headers, the H.O. GREEN catted X-pipe arrangement and separate competition-only front pipes. It gives you both pipe sets, rather than supplying a catalyst-free system alone. The competition pipes are not for public-road use, and a competition-use waiver is required for the package.\u003c\/p\u003e\u003ch2\u003eFitting and ownership\u003c\/h2\u003e\u003cp\u003eGaskets, header bolts, O2 extensions and clamps accompany the header installation. We recommend professional fitting and a tune for the long tube conversion. The mid-pipe clamp studs may need trimming to clear the belly pan; that clearance check helps avoid a rattle after installation. Check the fasteners again after the first heat cycle.\u003c\/p\u003e\u003ch2\u003eTuning for your header upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend a tune with these headers, matched to your engine and the completed exhaust. Explore our \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/products\/chevrolet-corvette-c7-ecu-and-tcm-tuning-2014-2019\"\u003e2014-2019 C7 ECU and TCM tuning\u003c\/a\u003e or \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003econtact us\u003c\/a\u003e to discuss your Corvette and its modifications.\u003c\/p\u003e\u003ch2\u003eChoose your option\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eHeader Size\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eCat Type\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ contents\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eStated use restriction\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2170H430\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\"\u003c\/td\u003e\n\u003ctd\u003eGREEN Cats\u003c\/td\u003e\n\u003ctd\u003eStraight 1-7\/8\" primaries; GREEN catted X-pipe; 2-3\/4\" OEM rear connection.\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2170H440\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\"\u003c\/td\u003e\n\u003ctd\u003eH.O. GREEN Cats\u003c\/td\u003e\n\u003ctd\u003eStraight 1-7\/8\" primaries; H.O. GREEN catted X-pipe; 2-3\/4\" OEM rear connection.\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2170H530\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" x 2\" Stepped\u003c\/td\u003e\n\u003ctd\u003eGREEN Cats\u003c\/td\u003e\n\u003ctd\u003eStepped-primary design; GREEN catted X-pipe; 2-3\/4\" OEM rear connection.\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2170H630\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003ctd\u003eGREEN Cats\u003c\/td\u003e\n\u003ctd\u003eStraight 2\" primaries; GREEN catted X-pipe; 2-3\/4\" OEM rear connection.\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2170H640\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003ctd\u003eH.O. GREEN Cats\u003c\/td\u003e\n\u003ctd\u003eStraight 2\" primaries; H.O. GREEN catted X-pipe; 2-3\/4\" OEM rear connection.\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2170H6SS\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003ctd\u003eStreet\/Strip\u003c\/td\u003e\n\u003ctd\u003eStraight 2\" primaries; H.O. GREEN catted arrangement AND separate competition-only front pipes; 2-3\/4\" OEM rear connection.\u003c\/td\u003e\n\u003ctd\u003eCompetition, off-road and track use only. Not for use on public roads. Kooks competition-use waiver required.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle and trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU \/ fitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014-2019\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette Stingray\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2170H430, 2170H440, 2170H530, 2170H630, 2170H640, 2170H6SS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014-2016\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette Z51\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2170H430, 2170H440, 2170H530, 2170H630, 2170H640, 2170H6SS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2019\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette Z06\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2170H430, 2170H440, 2170H530, 2170H630, 2170H640, 2170H6SS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2019\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette Grand Sport\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2170H430, 2170H440, 2170H530, 2170H630, 2170H640, 2170H6SS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette ZR1\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2170H430, 2170H440, 2170H530, 2170H630, 2170H640, 2170H6SS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eCorvette C7, 2014-2019; 6.2 LT1, LT4 and LT5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeader designs\u003c\/td\u003e\n\u003ctd\u003eStraight 1-7\/8\", stepped 1-7\/8\" to 2\", or straight 2\" primary tubes, in the listed combinations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollector and X-pipe diameter\u003c\/td\u003e\n\u003ctd\u003e3\" collectors and X-pipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear connection\u003c\/td\u003e\n\u003ctd\u003e2-3\/4\" OEM rear-exhaust connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupplied exhaust parts\u003c\/td\u003e\n\u003ctd\u003eLong tube headers and matching X-pipe\/connection arrangement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupplied fitting parts\u003c\/td\u003e\n\u003ctd\u003eGaskets, header bolts, O2 extensions and clamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStreet\/Strip contents\u003c\/td\u003e\n\u003ctd\u003eH.O. GREEN catted arrangement plus separate competition-only front pipes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitting detail\u003c\/td\u003e\n\u003ctd\u003eCheck belly-pan clearance; mid-pipe clamp studs may need trimming\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTuning recommendation\u003c\/td\u003e\n\u003ctd\u003eHoonies recommends a tune for the completed header and exhaust installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eFAQs\u003c\/h2\u003e\u003ch3\u003eCan I keep the factory rear exhaust?\u003c\/h3\u003e\u003cp\u003eYes. These packages provide the 2-3\/4\" OEM rear connection for the compatible C7 exhaust.\u003c\/p\u003e\u003ch3\u003eIs the stepped header the same as the 2\" option?\u003c\/h3\u003e\u003cp\u003eNo. Its primary diameter increases from 1-7\/8\" to 2\" along the tube. The straight 2\" header uses that primary diameter throughout.\u003c\/p\u003e\u003ch3\u003eWhat comes with Street\/Strip?\u003c\/h3\u003e\u003cp\u003eThe 2\" primary headers, H.O. GREEN catted X-pipe arrangement and separate competition-only front pipes. The competition pipes are reserved for off-road and track use.\u003c\/p\u003e\u003ch3\u003eWill GREEN catalysts remove every warning-light concern?\u003c\/h3\u003e\u003cp\u003eNo. A catted exhaust does not guarantee the absence of a check-engine light. The engine and calibration need to suit the completed exhaust.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"1-7\/8\" \/ GREEN Cats","offer_id":55646893048150,"sku":"2170H430","price":3962.94,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\" \/ H.O. GREEN Cats","offer_id":55646893080918,"sku":"2170H440","price":4483.59,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\" x 2\" Stepped \/ GREEN Cats","offer_id":55646893113686,"sku":"2170H530","price":4792.55,"currency_code":"GBP","in_stock":true},{"title":"2\" \/ GREEN Cats","offer_id":55646893146454,"sku":"2170H630","price":3989.87,"currency_code":"GBP","in_stock":true},{"title":"2\" \/ H.O. GREEN Cats","offer_id":55646893179222,"sku":"2170H640","price":4510.53,"currency_code":"GBP","in_stock":true},{"title":"2\" \/ Street\/Strip","offer_id":55646893211990,"sku":"2170H6SS","price":4737.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/27eb14bcbd843819e0b82eddb1ff4e90_7165430c-5d9f-49fd-8f98-e542908569da.jpg?v=1791452465"},{"product_id":"kooks-2019-gm-1500-series-header-connection-kits-868b88dc","title":"Kooks GM 1500 6.2L Performance-Catted Header and Y-Pipe Kit (2019+) | 2863H420","description":"\u003ch2\u003eA matched exhaust upgrade for your naturally aspirated 6.2\u003c\/h2\u003e\u003cp\u003eBring Kooks long tube headers and a catted Y-pipe to your 6.2-litre GM truck as one matched upgrade. The 1-7\/8\" primaries, 3\" collectors and 3-1\/2\" OEM rear outlet give you a clear specification for improving the front exhaust while retaining the rear system.\u003c\/p\u003e\u003cp\u003eSKU: 2863H420\u003c\/p\u003e\u003ch2\u003eHeaders and Y-pipe in one kit\u003c\/h2\u003e\u003cp\u003eThe stainless steel Y-pipe is supplied with the headers and uses the rear outlet for the listed 6.2-litre configuration. You can keep a rear exhaust that uses the factory 3-1\/2\" interface, rather than adding a new cat-back to complete this purchase.\u003c\/p\u003e\u003ch2\u003eChoose Performance cats for a naturally aspirated build\u003c\/h2\u003e\u003cp\u003eThis package uses standard Performance cats. They are intended for naturally aspirated applications. For a truck with a supercharger or turbocharger, choose a suitable GREEN-family catalyst package so the front exhaust matches the engine you are building.\u003c\/p\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eCadillac Escalade\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eChevrolet Suburban\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 High Country\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LTZ\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 RST\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LT Trail Boss\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2022-2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 ZR2\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon XL\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 Denali\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 AT4\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 SLT\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e2863H420\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnections\u003c\/td\u003e\n\u003ctd\u003e3\" Performance-catted Y-pipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003e3-1\/2\" OEM interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalyst condition\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs the Y-pipe included?\u003c\/h3\u003e\u003cp\u003eYes. This is the header-and-catted-Y-pipe kit.\u003c\/p\u003e\u003ch3\u003eCan I use the Performance cats with a supercharger?\u003c\/h3\u003e\u003cp\u003eChoose a catalyst specification intended for forced induction. This Performance-catted package is for a naturally aspirated engine.\u003c\/p\u003e\u003ch3\u003eDo you recommend tuning with these headers?\u003c\/h3\u003e\u003cp\u003eWe recommend tuning with every header installation. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eTalk to us\u003c\/a\u003e about calibration for your vehicle, exhaust and other modifications.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003eCompetition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"6.2L \/ 1-7\/8\" \/ Performance Cats","offer_id":55646893310294,"sku":"2863H420","price":4137.78,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/5e8d8a527404da993c9b14fca0e8fd49_a612552b-5bf1-4edd-ac9b-f63518797c60.png?v=1791452466"},{"product_id":"kooks-2019-gm-1500-series-header-connection-kits-a22e3e27","title":"Kooks GM 1500 6.2L GREEN Header and Y-Pipe Kit (2019+) | 2863H430","description":"\u003ch2\u003eLet your 6.2-litre V8 do more of the talking\u003c\/h2\u003e\u003cp\u003eUpgrade the front exhaust on your 6.2-litre GM truck with Kooks long tube headers and a matching GREEN catted Y-pipe. The kit pairs 1-7\/8\" headers with a 3\" Y-pipe and a 3-1\/2\" OEM rear outlet, so you can improve the front system while keeping the rear exhaust you enjoy.\u003c\/p\u003e\u003cp\u003eSKU: 2863H430\u003c\/p\u003e\u003ch2\u003eA kit matched to the 6.2\u003c\/h2\u003e\u003cp\u003eThe 1-7\/8\" primaries lead into 3\" collectors and the supplied GREEN Y-pipe. The 3-1\/2\" rear interface is part of this 6.2-litre configuration; it is different from the 2-3\/4\" outlet used on the equivalent 5.3 kit. That makes the engine choice relevant to the complete exhaust, not just the headers.\u003c\/p\u003e\u003ch2\u003eReady for your supercharged build\u003c\/h2\u003e\u003cp\u003eGREEN cats suit both naturally aspirated and forced-induction engines, making this the appropriate choice if your 6.2-litre build includes a supercharger. The headers and Y-pipe arrive as a matched front system, with the OEM rear connection for your existing exhaust.\u003c\/p\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eCadillac Escalade\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet Suburban\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LTZ\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 High Country\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 RST\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LT Trail Boss\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2022-2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 ZR2\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet Tahoe High Country\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2024\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon XL\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 SLT\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 AT4\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 Denali\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2024\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e2863H430\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine\u003c\/td\u003e\n\u003ctd\u003e6.2L V8; see model\/trim years in the fitment table\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupplied connection\u003c\/td\u003e\n\u003ctd\u003e3\" GREEN catted Y-pipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003e3-1\/2\" OEM interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalyst suitability\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated or forced induction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eDoes the Y-pipe come with the headers?\u003c\/h3\u003e\u003cp\u003eYes. 2863H430 is the paired header-and-GREEN-Y-pipe kit.\u003c\/p\u003e\u003ch3\u003eIs it the same rear connection as the 5.3 kit?\u003c\/h3\u003e\u003cp\u003eNo. This 6.2 kit uses a 3-1\/2\" OEM outlet; the corresponding 5.3 kit uses 2-3\/4\".\u003c\/p\u003e\u003ch3\u003eDo you recommend tuning with these headers?\u003c\/h3\u003e\u003cp\u003eWe recommend tuning with every header installation. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eTalk to us\u003c\/a\u003e about calibration for your vehicle, exhaust and other modifications.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"6.2L \/ 1-7\/8\" \/ GREEN Cats","offer_id":55646893474134,"sku":"2863H430","price":4705.76,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/5e8d8a527404da993c9b14fca0e8fd49_93c3d303-9f5a-49ba-8ca2-61b3384c584f.png?v=1791452466"},{"product_id":"kooks-2005-2010-ford-mustang-gt-4-6l-header-conn-kits","title":"Kooks Mustang GT 4.6 Header and X \/ H-Pipe Kits (2005-2010)","description":"\u003ch2\u003eChoose the exhaust character you want for your Mustang\u003c\/h2\u003e\u003cp\u003eGive your 4.6-litre Mustang a matched Kooks long tube header kit with the crossover and catalysts that suit your build. Choose an X-pipe or H-pipe with Performance or GREEN cats, all paired with 1-5\/8\" headers and the 2-1\/2\" OEM rear connection.\u003c\/p\u003e\u003cp\u003eSKUs: 1131H020, 1131H030, 1131H050, 1131H060\u003c\/p\u003e\u003ch2\u003eChoose an X-pipe or H-pipe\u003c\/h2\u003e\u003cp\u003eAn X-pipe merges the exhaust streams; an H-pipe uses a balance tube between the banks. An X generally favours a smoother, higher-pitched character and an H a deeper tone. Your rear mufflers and the rest of the system also shape the sound.\u003c\/p\u003e\u003ch2\u003eMade for manual and automatic cars\u003c\/h2\u003e\u003cp\u003eBoth transmission layouts are supported. The headers and crossover use 16-gauge 304 stainless steel, with mandrel-bent primaries, 3\/8\" laser-cut flanges and the stock bolt pattern. Necessary installation hardware is included.\u003c\/p\u003e\u003ch2\u003eMatch the catalysts to your modifications\u003c\/h2\u003e\u003cp\u003ePerformance cats suit naturally aspirated engines. GREEN is suitable for forced induction. Both catalyst choices use a 400-cell specification on these exact kits, but the engine-use distinction still matters when choosing the package.\u003c\/p\u003e\u003ch2\u003eChoose your configuration\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"variant-comparison\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eConfiguration\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSupplied arrangement\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ engine conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1131H020\u003c\/td\u003e\n\u003ctd\u003eCat Type: Performance Cats; Crossover Type: X Pipe\u003c\/td\u003e\n\u003ctd\u003eHeaders; Performance Cats X-pipe; Necessary installation hardware included\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1131H030\u003c\/td\u003e\n\u003ctd\u003eCat Type: GREEN Cats; Crossover Type: X Pipe\u003c\/td\u003e\n\u003ctd\u003eHeaders; GREEN Cats X-pipe; Necessary installation hardware included\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1131H050\u003c\/td\u003e\n\u003ctd\u003eCat Type: Performance Cats; Crossover Type: H Pipe\u003c\/td\u003e\n\u003ctd\u003eHeaders; Performance Cats H-pipe; Necessary installation hardware included\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1131H060\u003c\/td\u003e\n\u003ctd\u003eCat Type: GREEN Cats; Crossover Type: H Pipe\u003c\/td\u003e\n\u003ctd\u003eHeaders; GREEN Cats H-pipe; Necessary installation hardware included\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2005-2010\u003c\/td\u003e\n\u003ctd\u003eFord Mustang GT\u003c\/td\u003e\n\u003ctd\u003e4.6L V8\u003c\/td\u003e\n\u003ctd\u003e1131H020, 1131H030, 1131H050, 1131H060\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2007-2008\u003c\/td\u003e\n\u003ctd\u003eFord Mustang Shelby GT\u003c\/td\u003e\n\u003ctd\u003e4.6L V8\u003c\/td\u003e\n\u003ctd\u003e1131H020, 1131H030, 1131H050, 1131H060\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008-2009\u003c\/td\u003e\n\u003ctd\u003eFord Mustang Bullitt\u003c\/td\u003e\n\u003ctd\u003e4.6L V8\u003c\/td\u003e\n\u003ctd\u003e1131H020, 1131H030, 1131H050, 1131H060\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKUs\u003c\/td\u003e\n\u003ctd\u003e1131H020, 1131H030, 1131H050, 1131H060\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eListed 2005-2010 Mustang 4.6L 3V applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmissions\u003c\/td\u003e\n\u003ctd\u003eManual or automatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e16-gauge 304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e1-5\/8\" primaries; 2-1\/2\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlanges\u003c\/td\u003e\n\u003ctd\u003e3\/8\" laser-cut; stock bolt pattern\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrossover \/ rear outlet\u003c\/td\u003e\n\u003ctd\u003e2-1\/2\" X or H-pipe; 2-1\/2\" OEM outlets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalysts\u003c\/td\u003e\n\u003ctd\u003ePerformance or GREEN; 400-cell specification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eHeaders, selected crossover and necessary installation hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePerformance condition\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eCan I choose either crossover with GREEN cats?\u003c\/h3\u003e\u003cp\u003eYes. Both GREEN X-pipe and GREEN H-pipe kits are available.\u003c\/p\u003e\u003ch3\u003eWill this fit an automatic Mustang?\u003c\/h3\u003e\u003cp\u003eYes, for the listed engine, trim and year applications.\u003c\/p\u003e\u003ch3\u003eAre the rear mufflers part of the kit?\u003c\/h3\u003e\u003cp\u003eThe package joins the OEM rear interface, retaining a compatible rear exhaust.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003e1131H020, 1131H050: Competition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"Performance Cats \/ X Pipe","offer_id":55646894260566,"sku":"1131H020","price":2559.28,"currency_code":"GBP","in_stock":true},{"title":"GREEN Cats \/ X Pipe","offer_id":55646894293334,"sku":"1131H030","price":3127.26,"currency_code":"GBP","in_stock":true},{"title":"Performance Cats \/ H Pipe","offer_id":55646894326102,"sku":"1131H050","price":2668.64,"currency_code":"GBP","in_stock":true},{"title":"GREEN Cats \/ H Pipe","offer_id":55646894358870,"sku":"1131H060","price":3236.63,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/3e6ee7f385e13898f2a7494dfb6dd107_26a178af-edba-41ff-9eda-feba34dac329.jpg?v=1791452468"},{"product_id":"kooks-2023-cadillac-escalade-v-header-conn-kits","title":"Kooks Cadillac Escalade-V Header and Connection Kits","description":"\u003ch2\u003eLet your Escalade-V show more of its supercharged character\u003c\/h2\u003e\u003cp\u003eThe Escalade-V has a V8 worth building around. These Kooks kits pair 1-7\/8\" stainless headers with GREEN or H.O. GREEN catted front connections, while keeping the OEM rear exhaust interface. You can choose the catalyst specification for your supercharged engine without piecing together the front system yourself.\u003c\/p\u003e\u003cp\u003eSKUs: 2864H430, 2864H440\u003c\/p\u003e\u003ch2\u003eTwo catalysts for a forced-induction engine\u003c\/h2\u003e\u003cp\u003eThe GREEN kit uses a 400-cell catalyst substrate. H.O. GREEN uses a 300-cell substrate. Both are suitable for forced induction. Choose the specification around your finished engine and how you intend to use it, rather than treating the catalyst names as cosmetic options.\u003c\/p\u003e\u003ch2\u003eFitting parts included\u003c\/h2\u003e\u003cp\u003eBoth kits use 304 stainless steel, oval ports and the stock bolt pattern. The front connection pipes have an OEM outlet, and the necessary installation hardware is supplied. You can retain a rear exhaust that uses the factory interface.\u003c\/p\u003e\u003ch2\u003eChoose your configuration\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"variant-comparison\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eConfiguration\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSupplied arrangement\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ engine conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2864H430\u003c\/td\u003e\n\u003ctd\u003eCat Type: GREEN Cats\u003c\/td\u003e\n\u003ctd\u003eHeaders; GREEN Cats front connections\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2864H440\u003c\/td\u003e\n\u003ctd\u003eCat Type: H.O. GREEN Cats\u003c\/td\u003e\n\u003ctd\u003eHeaders; H.O. GREEN cats front connections\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e2023-2027\u003c\/td\u003e\n\u003ctd\u003eCadillac Escalade V\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2864H430, 2864H440\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKUs\u003c\/td\u003e\n\u003ctd\u003e2864H430, 2864H440\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2023+ Cadillac Escalade-V, 6.2L supercharged V8; retained years below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary tubing\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead interface\u003c\/td\u003e\n\u003ctd\u003eOval ports; stock bolt pattern\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalyst choices\u003c\/td\u003e\n\u003ctd\u003eGREEN: 400 cell; H.O. GREEN: 300 cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalyst suitability\u003c\/td\u003e\n\u003ctd\u003eBoth suitable for forced induction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear connection\u003c\/td\u003e\n\u003ctd\u003eOEM outlet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitting parts\u003c\/td\u003e\n\u003ctd\u003eNecessary installation hardware included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eAre both kits suitable for the supercharged engine?\u003c\/h3\u003e\u003cp\u003eYes. Both the GREEN and H.O. GREEN choices are specified for forced induction.\u003c\/p\u003e\u003ch3\u003eAre the rear mufflers replaced by this kit?\u003c\/h3\u003e\u003cp\u003eThe kit supplies headers and front connections with an OEM rear outlet. It joins your rear exhaust.\u003c\/p\u003e\u003ch3\u003eDo you recommend tuning with these headers?\u003c\/h3\u003e\u003cp\u003eWe recommend tuning with every header installation. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eTalk to us\u003c\/a\u003e about calibration for your vehicle, exhaust and other modifications.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"GREEN Cats","offer_id":55646894424406,"sku":"2864H430","price":3437.31,"currency_code":"GBP","in_stock":true},{"title":"H.O. GREEN Cats","offer_id":55646894457174,"sku":"2864H440","price":3957.96,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/260374258f13e7a4c689887727d5c200_3871595d-7292-4aae-9818-c293f24836fc.png?v=1791452468"},{"product_id":"kooks-2180h640","title":"Kooks Corvette C8 Stingray 2-inch H.O. GREEN Header Kit (2020-2026) | 2180H640","description":"\u003ch2\u003eTake your Stingray exhaust upgrade further\u003c\/h2\u003e\u003cp\u003eChoose a matched Kooks long tube header and H.O. GREEN connection kit for your 6.2-litre Stingray. The 2\" headers and supplied high-output catalytic connections upgrade the front system together, while a 2-3\/4\" OEM rear interface lets you keep the rear exhaust you already enjoy.\u003c\/p\u003e\u003cp\u003eSKU: 2180H640\u003c\/p\u003e\u003ch2\u003eHeaders built for the Stingray LT2\u003c\/h2\u003e\u003cp\u003eThe oval-port headers use the stock bolt pattern, 3\/8\" laser-cut flanges and 3\" flanged collector outlets. The matching H.O. GREEN catted pipes are supplied in the kit, along with gaskets and the bolt kit. That gives you a coordinated front upgrade rather than a header purchase with the connections left to solve later.\u003c\/p\u003e\u003ch2\u003eMade for your Stingray\u003c\/h2\u003e\u003cp\u003eThis kit is made for the 2020-2026 C8 Stingray and connects to its factory rear exhaust. You can upgrade the headers and cats together while keeping the rear system you already have.\u003c\/p\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation. Our \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/products\/chevrolet-corvette-stingray-c8-ecu-tuning-2020\"\u003eC8 Stingray ECU tuning\u003c\/a\u003e service can build the calibration around your Stingray, its new headers, the rest of the exhaust and your fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to plan the installation and tuning together.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e2020-2026\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette Stingray\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2180H640\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e2180H640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2020-2026 Corvette C8 Stingray, 6.2L LT2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e2\" primaries; 3\" flanged collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlanges\u003c\/td\u003e\n\u003ctd\u003e3\/8\" laser-cut; oval ports; stock bolt pattern\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnections\u003c\/td\u003e\n\u003ctd\u003eH.O. GREEN catted; 3\" to 2-3\/4\" OEM rear interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded fitting parts\u003c\/td\u003e\n\u003ctd\u003eGaskets and bolt kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication boundary\u003c\/td\u003e\n\u003ctd\u003eStingray only; excludes other C8 variants and 2027+ Stingray\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWill this fit an E-Ray or Z06?\u003c\/h3\u003e\u003cp\u003eThis header kit is for the 2020-2026 Stingray. E-Ray and Z06 require their matching header arrangements.\u003c\/p\u003e\u003ch3\u003eAre the catted connections included?\u003c\/h3\u003e\u003cp\u003eYes. The kit includes the H.O. GREEN front connections for these headers.\u003c\/p\u003e\u003ch3\u003eDo you recommend tuning with these headers?\u003c\/h3\u003e\u003cp\u003eWe recommend tuning with every header installation. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eTalk to us\u003c\/a\u003e about calibration for your vehicle, exhaust and other modifications.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":55646895309142,"sku":"2180H640","price":4422.88,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/e1475b96dc756e275b2f2ac9bacfd384.jpg?v=1791452471"},{"product_id":"kooks-2007-2010-shelby-gt500-5-4l-header-connection-kits","title":"Kooks Shelby GT500 GREEN Header and Crossover Kits (2007-2010)","description":"\u003ch2\u003eGive your GT500 the exhaust character you want\u003c\/h2\u003e\u003cp\u003eUpgrade your supercharged 5.4-litre GT500 with Kooks headers and a GREEN catted crossover, while choosing the primary size and crossover style that suit your car. Both 1-3\/4\" and 1-7\/8\" headers are available with X-pipe or H-pipe connections to the OEM rear exhaust.\u003c\/p\u003e\u003cp\u003eSKUs: 1132H230, 1132H260, 1132H430, 1132H460\u003c\/p\u003e\u003ch2\u003eChoose the crossover you prefer\u003c\/h2\u003e\u003cp\u003eThe X-pipe merges the banks and generally gives a smoother, higher-pitched character. The H-pipe balances the banks through a connecting tube and is associated with a deeper muscle-car tone. Your rear silencers and the rest of the system influence the final sound too.\u003c\/p\u003e\u003ch2\u003eMatched to the earlier GT500\u003c\/h2\u003e\u003cp\u003eAll four combinations use 3\" collectors and a 2-1\/2\" rear outlet for the 2007-2010 factory interface. That rear connection differs from the later 2011-2014 GT500 kits, so choose the package around your generation as well as your desired primary size.\u003c\/p\u003e\u003ch2\u003eChoose your configuration\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"variant-comparison\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eConfiguration\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSupplied arrangement\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ engine conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1132H230\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-3\/4\"; Crossover Type: X Pipe\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\" headers;  X-pipe\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1132H260\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-3\/4\"; Crossover Type: H Pipe\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\" headers;  H-pipe\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1132H430\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Crossover Type: X Pipe\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers;  X-pipe\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1132H460\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Crossover Type: H Pipe\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers;  H-pipe\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2007-2010\u003c\/td\u003e\n\u003ctd\u003eFord Mustang Shelby GT500\u003c\/td\u003e\n\u003ctd\u003e5.4L V8\u003c\/td\u003e\n\u003ctd\u003e1132H230, 1132H260, 1132H430, 1132H460\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008-2009\u003c\/td\u003e\n\u003ctd\u003eFord Mustang Shelby GT500KR\u003c\/td\u003e\n\u003ctd\u003e5.4L V8\u003c\/td\u003e\n\u003ctd\u003e1132H230, 1132H260, 1132H430, 1132H460\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKUs\u003c\/td\u003e\n\u003ctd\u003e1132H230, 1132H260, 1132H430, 1132H460\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2007-2010 Shelby GT500, 5.4L supercharged V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary choices\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\" or 1-7\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollectors\u003c\/td\u003e\n\u003ctd\u003e3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrossover choices\u003c\/td\u003e\n\u003ctd\u003eGREEN catted X-pipe or H-pipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003e2-1\/2\" OEM interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs the catalyst the same in all four choices?\u003c\/h3\u003e\u003cp\u003eYes. These four packages use GREEN cats. They vary the primary size and X\/H crossover.\u003c\/p\u003e\u003ch3\u003eWill it use the later GT500 rear connection?\u003c\/h3\u003e\u003cp\u003eThe 2007-2010 kits use a 2-1\/2\" outlet. The later GT500 kits use a different OEM rear interface.\u003c\/p\u003e\u003ch3\u003eDo you recommend tuning with these headers?\u003c\/h3\u003e\u003cp\u003eWe recommend tuning with every header installation. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eTalk to us\u003c\/a\u003e about calibration for your vehicle, exhaust and other modifications.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"1-3\/4\" \/ X Pipe","offer_id":55646895472982,"sku":"1132H230","price":3687.57,"currency_code":"GBP","in_stock":true},{"title":"1-3\/4\" \/ H Pipe","offer_id":55646895505750,"sku":"1132H260","price":3800.14,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\" \/ X Pipe","offer_id":55646895538518,"sku":"1132H430","price":3859.46,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\" \/ H Pipe","offer_id":55646895571286,"sku":"1132H460","price":3972.02,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/1b128e5d18f7f6fbab35873a20340ec5_1b066ec9-cef3-4cfd-a6b1-522fa91fcb4f.jpg?v=1791452471"},{"product_id":"kooks-2181hy30","title":"Kooks Corvette C8 Z06 Tri-Y Header and Ultra-GREEN Connection Kit | 2181HY30","description":"\u003ch2\u003eUpgrade your Z06 headers and catalytic connections together\u003c\/h2\u003e\u003cp\u003eMake the most of your Z06 with a matched set of Kooks stepped Tri-Y headers and Ultra-GREEN catalytic connections. The 304 stainless steel construction and LT6-specific design make this a substantial front exhaust upgrade, while the factory-style rear connection lets you keep your existing rear exhaust.\u003c\/p\u003e\u003cp\u003eSKU: 2181HY30\u003c\/p\u003e\u003ch2\u003eStepped tubing, purpose-built connections\u003c\/h2\u003e\u003cp\u003eThe primary tubes increase from 1-7\/8\" to 2\" and merge through a Tri-Y arrangement. The kit pairs that header design with Ultra-GREEN catted connection pipes, so the two parts of the front conversion are already matched. The oval ports and stock cylinder-head bolt pattern suit the Z06 LT6.\u003c\/p\u003e\u003ch2\u003eKeep the rear exhaust you like\u003c\/h2\u003e\u003cp\u003eThe flanged connection-pipe outlets join the OEM rear exhaust. That is useful if you enjoy the original rear system or already have an aftermarket system with the same factory interface. Have the complete installation checked for sensor routing and heat clearance before the car returns to use.\u003c\/p\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e2023-2026\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette Z06\u003c\/td\u003e\n\u003ctd\u003e5.5L V8\u003c\/td\u003e\n\u003ctd\u003e2181HY30\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e2181HY30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2023-2026 Corvette C8 Z06, 5.5L LT6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary tubing\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" stepping to 2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeader layout\u003c\/td\u003e\n\u003ctd\u003eTri-Y\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead interface\u003c\/td\u003e\n\u003ctd\u003eOval ports; stock bolt pattern\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded front pipes\u003c\/td\u003e\n\u003ctd\u003eUltra-GREEN catted connections\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear connection\u003c\/td\u003e\n\u003ctd\u003eFlanged outlet to OEM exhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eAre the catalytic connections included?\u003c\/h3\u003e\u003cp\u003eYes. This kit combines the Tri-Y headers and their Ultra-GREEN catted connection pipes.\u003c\/p\u003e\u003ch3\u003eWhich Z06 engine is it for?\u003c\/h3\u003e\u003cp\u003eThe C8 Z06 5.5L LT6. Choose a Stingray-specific system for the 6.2L LT2; the shared C8 name does not make the headers interchangeable.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":55646895866198,"sku":"2181HY30","price":7138.28,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/e874ff8eeca4b341b9800a0403939fe4_3d23d58a-bcb2-4dbf-a499-16f6f240c2b8.png?v=1791452474"},{"product_id":"kooks-2181hy30b","title":"Kooks Corvette C8 Z06 Tri-Y Header Kit with Ultra-GREEN Cats and Heat Blankets | 2181HY30B","description":"\u003ch2\u003eHear more of what makes your Z06 special\u003c\/h2\u003e\u003cp\u003eThe high-revving 5.5-litre V8 is a big part of why you bought your Z06. This Kooks kit upgrades its headers and front catalytic connections together, with stepped Tri-Y pipework and heat blankets for the Ultra-GREEN cats. It connects to the factory rear exhaust, giving you a matched front-end upgrade while keeping the rear system you already enjoy.\u003c\/p\u003e\u003cp\u003eSKU: 2181HY30B\u003c\/p\u003e\u003ch2\u003eA matched upgrade for the LT6\u003c\/h2\u003e\u003cp\u003eThe 1-7\/8\" primaries step to 2\" in a Tri-Y layout. Rather than collecting every cylinder into one junction immediately, the pipes merge in stages. That gives this kit a distinct header design, paired with the Ultra-GREEN connections made for the Z06. Oval ports and the stock bolt pattern match the LT6 installation.\u003c\/p\u003e\u003ch2\u003eHeat protection included\u003c\/h2\u003e\u003cp\u003eThe 5\"-bodied Ultra-GREEN catalytic connections and their heat blankets are supplied together. You can plan the front exhaust upgrade with the catalyst heat protection already included. The flanged rear outlets connect directly to the OEM exhaust. Professional fitting is worthwhile on the mid-engine Z06, where access and clearance around the surrounding components matter.\u003c\/p\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e2023-2026\u003c\/td\u003e\n\u003ctd\u003eChevrolet Corvette Z06\u003c\/td\u003e\n\u003ctd\u003e5.5L V8\u003c\/td\u003e\n\u003ctd\u003e2181HY30B\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e2181HY30B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2023-2026 Corvette C8 Z06, 5.5L LT6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary tubing\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" stepping to 2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeader layout\u003c\/td\u003e\n\u003ctd\u003eTri-Y\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCylinder-head interface\u003c\/td\u003e\n\u003ctd\u003eOval ports; stock bolt pattern\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalytic connections\u003c\/td\u003e\n\u003ctd\u003e5\"-bodied Ultra-GREEN; supplied with heat blankets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear connection\u003c\/td\u003e\n\u003ctd\u003eFlanged outlet to OEM exhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWhat is included?\u003c\/h3\u003e\u003cp\u003eThe stepped Tri-Y headers, Ultra-GREEN catted connection pipes and the catalyst heat blankets. The front connections are part of this kit, so you can order the matching header and catalyst upgrade together.\u003c\/p\u003e\u003ch3\u003eCan I keep my rear exhaust?\u003c\/h3\u003e\u003cp\u003eYes. The connection-pipe outlets bolt to the factory rear exhaust interface. If you already have an aftermarket rear system, it needs to retain that same interface.\u003c\/p\u003e\u003ch3\u003eDo you recommend tuning with these headers?\u003c\/h3\u003e\u003cp\u003eWe recommend tuning with every header installation. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eTalk to us\u003c\/a\u003e about calibration for your vehicle, exhaust and other modifications.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":55646896030038,"sku":"2181HY30B","price":7810.92,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/3534ed9aff169275ad93ef03579f3449.png?v=1791452474"},{"product_id":"kooks-2009-2023-dodge-charger-challenger-header-conn-kits-8e5c841f","title":"Kooks RWD Charger \/ Challenger \/ Chrysler 300 5.7 HEMI Header Kits","description":"\u003ch2\u003eBring out more of the HEMI in your car\u003c\/h2\u003e\u003cp\u003eUpgrade your rear-wheel-drive 5.7 HEMI with a Kooks long tube header and connection kit. Choose Competition Only, Performance or GREEN front pipes, all paired with 1-7\/8\" headers and the 2-1\/2\" OEM rear outlet. Choose against your vehicle, engine and the individual year rows below.\u003c\/p\u003e\u003cp\u003eSKUs: 3100H410, 3100H420, 3100H430\u003c\/p\u003e\u003ch2\u003eChoose around your modifications\u003c\/h2\u003e\u003cp\u003eThe Performance-catted kit is for naturally aspirated engines. GREEN supports forced induction, while Competition Only supplies uncatted front pipes for competition use. All three use 3\" collectors and a 2-1\/2\" OEM rear connection.\u003c\/p\u003e\u003ch2\u003eFor the rear-wheel-drive installation\u003c\/h2\u003e\u003cp\u003eThese kits are for the supported rear-wheel-drive D-port 5.7 cars. AWD uses a different layout and is outside this fitment. The Chrysler 300 year range also varies by SKU, so its fitment rows retain the individual part-number coverage.\u003c\/p\u003e\u003ch2\u003eChoose your configuration\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"variant-comparison\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eConfiguration\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSupplied arrangement\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ engine conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e3100H410\u003c\/td\u003e\n\u003ctd\u003eVehicle Trim: 5.7L R\/T; Header Size: 1-7\/8\"; Cat Type: Competition Only\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; Competition Only front connections\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive; Uncatted; competition use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3100H420\u003c\/td\u003e\n\u003ctd\u003eVehicle Trim: 5.7L R\/T; Header Size: 1-7\/8\"; Cat Type: Performance Cats\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; Performance Cats front connections\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive; Naturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3100H430\u003c\/td\u003e\n\u003ctd\u003eVehicle Trim: 5.7L R\/T; Header Size: 1-7\/8\"; Cat Type: GREEN Cats\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; GREEN Cats front connections\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2020\u003c\/td\u003e\n\u003ctd\u003eChrysler 300 C\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3100H410, 3100H420, 3100H430\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010-2020\u003c\/td\u003e\n\u003ctd\u003eChrysler 300 S\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3100H410\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010-2023\u003c\/td\u003e\n\u003ctd\u003eChrysler 300 S\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3100H420, 3100H430\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013-2014\u003c\/td\u003e\n\u003ctd\u003eChrysler 300 C Luxury\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3100H410, 3100H420, 3100H430\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2017\u003c\/td\u003e\n\u003ctd\u003eChrysler 300 C Platinum\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3100H410, 3100H420, 3100H430\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2023\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger R\/T\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3100H410, 3100H420, 3100H430\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger R\/T Classic\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3100H410, 3100H420, 3100H430\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2016\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger R\/T Plus\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3100H410, 3100H420, 3100H430\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger R\/T Plus Shaker\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3100H410, 3100H420, 3100H430\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger R\/T Shaker\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3100H410, 3100H420, 3100H430\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2018\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger T\/A\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3100H410, 3100H420, 3100H430\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2023\u003c\/td\u003e\n\u003ctd\u003eDodge Charger R\/T\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3100H410, 3100H420, 3100H430\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2013\u003c\/td\u003e\n\u003ctd\u003eDodge Charger SE\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3100H410, 3100H420, 3100H430\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012-2023\u003c\/td\u003e\n\u003ctd\u003eDodge Charger Pursuit\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3100H410, 3100H420, 3100H430\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2016\u003c\/td\u003e\n\u003ctd\u003eDodge Charger R\/T Road \u0026amp; Track\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3100H410, 3100H420, 3100H430\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2018\u003c\/td\u003e\n\u003ctd\u003eDodge Charger Daytona\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3100H410, 3100H420, 3100H430\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKUs\u003c\/td\u003e\n\u003ctd\u003e3100H410, 3100H420, 3100H430\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine\/layout\u003c\/td\u003e\n\u003ctd\u003e5.7L D-port HEMI; rear-wheel drive only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplications\u003c\/td\u003e\n\u003ctd\u003eSupported Charger \/ Challenger \/ Chrysler 300 trims and years below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003e2-1\/2\" OEM interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChoices\u003c\/td\u003e\n\u003ctd\u003eCompetition Only; Performance; GREEN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePerformance condition\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWill the kit fit an AWD car?\u003c\/h3\u003e\u003cp\u003eThese header kits use the rear-wheel-drive application. They do not fit AWD.\u003c\/p\u003e\u003ch3\u003eWhich choice suits a supercharger?\u003c\/h3\u003e\u003cp\u003eChoose the GREEN-catted 3100H430 from these three packages.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003e3100H410, 3100H420: Competition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003cp\u003eThe competition-use waiver applies to 3100H410.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"5.7L R\/T \/ 1-7\/8\" \/ Competition Only","offer_id":55646897701206,"sku":"3100H410","price":2802.17,"currency_code":"GBP","in_stock":true},{"title":"5.7L R\/T \/ 1-7\/8\" \/ Performance Cats","offer_id":55646897733974,"sku":"3100H420","price":3086.16,"currency_code":"GBP","in_stock":true},{"title":"5.7L R\/T \/ 1-7\/8\" \/ GREEN Cats","offer_id":55646897766742,"sku":"3100H430","price":3654.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/6cf052d49aa930f5f80901510fd08786_586062db-d625-48c5-a8d9-58b831b86942.jpg?v=1791452478"},{"product_id":"kooks-2011-2014-ford-mustang-gt-5-0l-header-conn-kits-0866879c","title":"Kooks Mustang Boss 302 Header and Side-Connection H-Pipe Kit | 1141H280","description":"\u003ch2\u003eUpgrade your Boss without giving up its side-exhaust layout\u003c\/h2\u003e\u003cp\u003eYour Boss 302 has an exhaust arrangement worth keeping. This Kooks kit combines 1-3\/4\" long tube headers with a Performance-catted H-pipe that includes side-pipe connections, while its 2-3\/4\" rear outlets join the OEM exhaust.\u003c\/p\u003e\u003cp\u003eSKU: 1141H280\u003c\/p\u003e\u003ch2\u003eMade for the Boss arrangement\u003c\/h2\u003e\u003cp\u003eThe H-pipe includes the connections for the side pipes, giving you the correct crossover layout for the 2012-2013 Boss 302. It is a useful distinction from the other Mustang kits, whose X or H crossovers do not offer this same side-pipe provision.\u003c\/p\u003e\u003ch2\u003eHeaders and crossover matched together\u003c\/h2\u003e\u003cp\u003eThe 304 stainless headers have 3\" collectors feeding the supplied catted H-pipe. Performance cats suit the naturally aspirated 5.0-litre engine. Buying the combined kit brings the header and crossover specification together before fitting.\u003c\/p\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e2012-2013\u003c\/td\u003e\n\u003ctd\u003eFord Mustang Boss 302\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1141H280\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e1141H280\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2012-2013 Mustang Boss 302 5.0L V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrossover\u003c\/td\u003e\n\u003ctd\u003ePerformance-catted H-pipe with side-pipe connections\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003e2-3\/4\" OEM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalyst condition\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eDoes the H-pipe have connections for the side pipes?\u003c\/h3\u003e\u003cp\u003eYes. That provision is part of this Boss 302 kit.\u003c\/p\u003e\u003ch3\u003eCan I use it with a supercharger?\u003c\/h3\u003e\u003cp\u003eThe supplied Performance cats are specified for naturally aspirated engines. Choose a forced-induction catalyst package for that build.\u003c\/p\u003e\u003ch3\u003eDo you recommend tuning with these headers?\u003c\/h3\u003e\u003cp\u003eWe recommend tuning with every header installation. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eTalk to us\u003c\/a\u003e about calibration for your vehicle, exhaust and other modifications.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003eCompetition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"1-3\/4\" \/ H Pipe W\/ Side Pipes \/ Performance Cats","offer_id":55646897897814,"sku":"1141H280","price":3480.64,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/3d9ada136f4839272f5654461dd679d9_55887c10-1b1f-4eb0-822f-8d6b16b2b5b5.jpg?v=1791452478"},{"product_id":"kooks-2011-2014-ford-mustang-gt-5-0l-header-conn-kits-45485b84","title":"Kooks Ford Mustang GT 5.0 Header and Crossover Kits (2011-2014)","description":"\u003ch2\u003eMake your Coyote Mustang sound and feel more like your car\u003c\/h2\u003e\u003cp\u003eUpgrade the front exhaust on your 2011-2014 Mustang GT with Kooks 1-7\/8\" long tube headers and a matching crossover. Choose Performance cats with an X-pipe, or GREEN cats with an X-pipe or H-pipe, while keeping the 2-3\/4\" OEM rear exhaust interface.\u003c\/p\u003e\u003cp\u003eSKUs: 1141H420, 1141H430, 1141H460\u003c\/p\u003e\u003ch2\u003eChoose the crossover character\u003c\/h2\u003e\u003cp\u003eThe X-pipe merges the exhaust streams, while the H-pipe uses a balance connection between the banks. An X generally gives a smoother, higher-pitched character; an H generally favours a deeper tone. Your rear silencers remain a large part of the sound you hear.\u003c\/p\u003e\u003ch2\u003eMatch the cats to your engine\u003c\/h2\u003e\u003cp\u003eThe Performance-catted X-pipe is for a naturally aspirated setup. The GREEN X and H choices support forced induction. All three packages have 1-7\/8\" primaries and 3\" collectors, so the crossover and catalyst combination is what changes here.\u003c\/p\u003e\u003ch2\u003eChoose your configuration\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"variant-comparison\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eConfiguration\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSupplied arrangement\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ engine conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1141H420\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Crossover Type: X Pipe; Cat Type: Performance Cats\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; Performance Cats X-pipe\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1141H430\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Crossover Type: X Pipe; Cat Type: GREEN Cats\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; GREEN Cats X-pipe\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1141H460\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Crossover Type: H Pipe; Cat Type: GREEN Cats\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; GREEN Cats H-pipe\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e2011-2014\u003c\/td\u003e\n\u003ctd\u003eFord Mustang GT\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1141H420, 1141H430, 1141H460\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKUs\u003c\/td\u003e\n\u003ctd\u003e1141H420, 1141H430, 1141H460\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2011-2014 Mustang GT 5.0L Coyote\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003e2-3\/4\" OEM interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChoices\u003c\/td\u003e\n\u003ctd\u003ePerformance X; GREEN X; GREEN H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePerformance condition\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs an H-pipe available with Performance cats?\u003c\/h3\u003e\u003cp\u003eThe H-pipe kit on this page uses GREEN cats. The Performance choice uses an X-pipe.\u003c\/p\u003e\u003ch3\u003eAre these for a 2012-2013 Boss 302 side-exhaust setup?\u003c\/h3\u003e\u003cp\u003eThe dedicated Boss 302 H-pipe kit has side-pipe connections. Choose that package when retaining that arrangement.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003e1141H420: Competition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"1-7\/8\" \/ X Pipe \/ Performance Cats","offer_id":55646898585942,"sku":"1141H420","price":3129.41,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\" \/ X Pipe \/ GREEN Cats","offer_id":55646898618710,"sku":"1141H430","price":3697.4,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\" \/ H Pipe \/ GREEN Cats","offer_id":55646898651478,"sku":"1141H460","price":3741.46,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/3d9ada136f4839272f5654461dd679d9_c7925aa2-427c-4466-af69-920b86bc0b50.jpg?v=1791452480"},{"product_id":"kooks-2011-2014-shelby-gt500-5-4l-5-8l-header-conn-kit","title":"Kooks Shelby GT500 GREEN Header and Crossover Kits (2011-2014)","description":"\u003ch2\u003eChoose the sound and setup you want for your GT500\u003c\/h2\u003e\u003cp\u003eUpgrade your GT500 with Kooks long tube headers and a matching GREEN catted crossover. Choose 1-3\/4\" or 1-7\/8\" headers and an X-pipe or H-pipe, with all four combinations connecting to the 2-3\/4\" OEM rear interface. You can choose around both your engine build and the exhaust character you enjoy.\u003c\/p\u003e\u003cp\u003eSKUs: 1142H230, 1142H260, 1142H430, 1142H460\u003c\/p\u003e\u003ch2\u003eX-pipe or H-pipe\u003c\/h2\u003e\u003cp\u003eAn X-pipe merges the two exhaust streams; an H-pipe uses a balance connection between them. In general, the X layout favours a smoother, higher-pitched character, while the H layout is associated with a deeper muscle-car tone. Your rear silencers still play a large part in the final sound.\u003c\/p\u003e\u003ch2\u003eTwo primary sizes, four real combinations\u003c\/h2\u003e\u003cp\u003eThe 1-3\/4\" and 1-7\/8\" header choices both use 3\" collectors. Each is available with either crossover, and all use GREEN cats. Choose the primary size for your 5.4 or 5.8 build, rather than treating the larger option as an automatic improvement for every car.\u003c\/p\u003e\u003ch2\u003eChoose your configuration\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"variant-comparison\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eConfiguration\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSupplied arrangement\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ engine conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1142H230\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-3\/4\"; Crossover Type: X Pipe\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\" headers;  X-pipe\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1142H260\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-3\/4\"; Crossover Type: H Pipe\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\" headers;  H-pipe\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1142H430\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Crossover Type: X Pipe\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers;  X-pipe\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1142H460\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Crossover Type: H Pipe\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers;  H-pipe\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eMatching products\u003c\/h2\u003e\u003cp\u003eFor the 2013-2014 GT500 5.8, the \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/products\/kooks-11434200?variant=55646900060502\"\u003eKooks quad-tip cat-back\u003c\/a\u003e adds the rear system, oval mufflers and polished tips. It is the later 5.8-litre application, with the matching 2-3\/4\" front inlet.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011-2012\u003c\/td\u003e\n\u003ctd\u003eFord Mustang Shelby GT500\u003c\/td\u003e\n\u003ctd\u003e5.4L V8\u003c\/td\u003e\n\u003ctd\u003e1142H230, 1142H260, 1142H430, 1142H460\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013-2014\u003c\/td\u003e\n\u003ctd\u003eFord Mustang Shelby GT500\u003c\/td\u003e\n\u003ctd\u003e5.8L V8\u003c\/td\u003e\n\u003ctd\u003e1142H230, 1142H260, 1142H430, 1142H460\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKUs\u003c\/td\u003e\n\u003ctd\u003e1142H230, 1142H260, 1142H430, 1142H460\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2011-2012 GT500 5.4L; 2013-2014 GT500 5.8L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary sizes\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\" or 1-7\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollectors\/crossover\u003c\/td\u003e\n\u003ctd\u003e3\" collectors; GREEN catted X-pipe or H-pipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003e2-3\/4\" OEM interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSelectable combinations\u003c\/td\u003e\n\u003ctd\u003eBoth header sizes with either X or H crossover\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eAre all four choices GREEN catted?\u003c\/h3\u003e\u003cp\u003eYes. The choices on this page vary the primary size and crossover layout, not the catalyst family.\u003c\/p\u003e\u003ch3\u003eWhich crossover will sound better?\u003c\/h3\u003e\u003cp\u003eChoose the character you prefer. An H-pipe generally has a deeper character; an X-pipe generally sounds smoother and higher pitched. Rear silencers and the rest of your exhaust also affect what you hear.\u003c\/p\u003e\u003ch3\u003eDo you recommend tuning with these headers?\u003c\/h3\u003e\u003cp\u003eWe recommend tuning with every header installation. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eTalk to us\u003c\/a\u003e about calibration for your vehicle, exhaust and other modifications.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"1-3\/4\" \/ X Pipe","offer_id":55646899732822,"sku":"1142H230","price":3914.11,"currency_code":"GBP","in_stock":true},{"title":"1-3\/4\" \/ H Pipe","offer_id":55646899765590,"sku":"1142H260","price":4025.84,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\" \/ X Pipe","offer_id":55646899798358,"sku":"1142H430","price":4086.0,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\" \/ H Pipe","offer_id":55646899831126,"sku":"1142H460","price":4197.74,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/86b106cf04c557b46b128d949ff17437_d6e6aeb9-d1dd-460d-b6d3-16823caf056f.jpg?v=1791452482"},{"product_id":"kooks-1998-2002-camaro-firebird-ls1-header-conn-kits","title":"Kooks Camaro \/ Firebird LS1 Header and Y-Pipe Kits (1998-2002)","description":"\u003ch2\u003eMake your LS1 F-body even more enjoyable\u003c\/h2\u003e\u003cp\u003eGive your Camaro or Firebird a matched Kooks front exhaust upgrade with 1-7\/8\" long tube headers and a supplied catted Y-pipe. Choose Performance or GREEN cats, while keeping the 2-3\/4\" OEM rear connection for your LS1-powered F-body.\u003c\/p\u003e\u003cp\u003eSKUs: 2241H420, 2241H430\u003c\/p\u003e\u003ch2\u003eMatched headers and Y-pipe\u003c\/h2\u003e\u003cp\u003eBoth packages use 1-7\/8\" primaries and 3\" collectors. Their supplied stainless Y-pipes transition to the 2-3\/4\" OEM rear interface, giving you a coordinated conversion from the engine to the retained rear exhaust.\u003c\/p\u003e\u003ch2\u003eChoose the cats for your LS1 build\u003c\/h2\u003e\u003cp\u003ePerformance cats suit naturally aspirated applications. GREEN is the catted choice here that supports forced induction. If your LS1 has a supercharger or turbocharger, choose the catalyst around that finished setup rather than the original factory engine specification.\u003c\/p\u003e\u003ch2\u003eChoose your configuration\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"variant-comparison\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eConfiguration\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSupplied arrangement\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ engine conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2241H420\u003c\/td\u003e\n\u003ctd\u003eCat Type: Performance Cats\u003c\/td\u003e\n\u003ctd\u003eHeaders; Performance Cats front connections\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2241H430\u003c\/td\u003e\n\u003ctd\u003eCat Type: GREEN Cats\u003c\/td\u003e\n\u003ctd\u003eHeaders; GREEN Cats front connections\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1998-2002\u003c\/td\u003e\n\u003ctd\u003eChevrolet Camaro Z28 SS\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e2241H420, 2241H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1998-2002\u003c\/td\u003e\n\u003ctd\u003eChevrolet Camaro Z28\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e2241H420, 2241H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1998-2002\u003c\/td\u003e\n\u003ctd\u003ePontiac Firebird Formula\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e2241H420, 2241H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1998-2002\u003c\/td\u003e\n\u003ctd\u003ePontiac Firebird Trans Am\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e2241H420, 2241H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKUs\u003c\/td\u003e\n\u003ctd\u003e2241H420, 2241H430\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e1998-2002 Camaro \/ Firebird LS1 5.7L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eY-pipe\u003c\/td\u003e\n\u003ctd\u003ePerformance or GREEN catted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003e2-3\/4\" OEM interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePerformance condition\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs the Y-pipe a separate purchase?\u003c\/h3\u003e\u003cp\u003eIt is included in these header-and-connection kits.\u003c\/p\u003e\u003ch3\u003eWhich kit is the GREEN version?\u003c\/h3\u003e\u003cp\u003e2241H430. The Performance-catted version is 2241H420.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003e2241H420: Competition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"Performance Cats","offer_id":55646899929430,"sku":"2241H420","price":2963.55,"currency_code":"GBP","in_stock":true},{"title":"GREEN Cats","offer_id":55646899962198,"sku":"2241H430","price":3531.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/8d1a07b1a3218b50b1bc5891dcc89dc7_1c0a021f-1319-49f4-a9e1-8a254b207b5c.jpg?v=1791452482"},{"product_id":"kooks-2009-2023-dodge-charger-challenger-header-conn-kits-1fbc7b5d","title":"Kooks Header and Connection Kits for Dodge \/ Chrysler 6.1 \u0026 6.4 HEMI","description":"\u003ch2\u003eBring more HEMI character to your Charger or Challenger\u003c\/h2\u003e\u003cp\u003eA proper header upgrade starts with the right fit for your HEMI. These Kooks packages combine stainless long tube headers and front connection pipes for the D-port 6.1 SRT8 and 6.4 392 applications. With options for catalyst type and primary size, you can choose the package that suits your engine while retaining a compatible OEM rear exhaust.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSKUs:\u003c\/strong\u003e 3101H410, 3101H420, 3101H430, 3101H630, 3101H640\u003c\/p\u003e\u003ch2\u003eHeaders and connections in one purchase\u003c\/h2\u003e\u003cp\u003eThe 3\" collectors feed connection pipes with a 2-3\/4\" OEM rear outlet. The connections include provision for the exhaust pressure sensor and a block-off plug, giving the installer the appropriate interface for the application.\u003c\/p\u003e\u003ch2\u003eChoose the catalyst for the engine\u003c\/h2\u003e\u003cp\u003ePerformance Cats are for naturally aspirated engines. GREEN and H.O. GREEN support naturally aspirated or forced-induction applications within their ratings. The H.O. version uses a 4-1\/2\" catalyst body and 300 CPSI substrate; GREEN uses a 4\" body and 400 CPSI substrate. The Competition Only option supplies catalyst-free front connections for a dedicated competition installation.\u003c\/p\u003e\u003ch2\u003eCheck the model and cylinder-head ports\u003c\/h2\u003e\u003cp\u003eThis range covers the listed 6.1 and 6.4 applications: Charger from 2006-2023, Challenger from 2008-2023 and Magnum SRT8 from 2006-2008. Chrysler 300 applications include 6.1 SRT8 from 2006-2010, 6.4 SRT8 from 2012-2014 and the 2023 300C 6.4. Match the actual engine and trim within those ranges. These are D-port headers, not headers for the square-port 2005-2008 5.7 HEMI.\u003c\/p\u003e\u003ch2\u003eFit the system with care\u003c\/h2\u003e\u003cp\u003eProfessional fitting and calibration are recommended for the long tube conversion. The installation includes dipstick routing and clearance checks around the engine and brake lines. Check fasteners after the first heat cycle.\u003c\/p\u003e\u003ch2\u003eTuning for your header upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend a tune with these headers, matched to your engine and the completed exhaust. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eTalk to us about tuning\u003c\/a\u003e for your vehicle and modifications.\u003c\/p\u003e\u003ch2\u003eChoose your option\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle Trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eHeader Size\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eCat Type\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ contents\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eStated use restriction\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e3101H410\u003c\/td\u003e\n\u003ctd\u003e6.1L SRT8 \/ 6.4L 392\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\"\u003c\/td\u003e\n\u003ctd\u003eCompetition Only\u003c\/td\u003e\n\u003ctd\u003eHeader pair and front connections; 3\" collectors and 2-3\/4\" OEM rear outlet; pressure-sensor provision and plug.\u003c\/td\u003e\n\u003ctd\u003eCompetition, off-road and track use only. Not for use on public roads. Kooks competition-use waiver required.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3101H420\u003c\/td\u003e\n\u003ctd\u003e6.1L SRT8 \/ 6.4L 392\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\"\u003c\/td\u003e\n\u003ctd\u003ePerformance Cats\u003c\/td\u003e\n\u003ctd\u003eHeader pair and front connections; 3\" collectors and 2-3\/4\" OEM rear outlet; pressure-sensor provision and plug.\u003c\/td\u003e\n\u003ctd\u003eCompetition, off-road and track use only. Not for use on public roads.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3101H430\u003c\/td\u003e\n\u003ctd\u003e6.1L SRT8 \/ 6.4L 392\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\"\u003c\/td\u003e\n\u003ctd\u003eGREEN Cats\u003c\/td\u003e\n\u003ctd\u003eHeader pair and front connections; 3\" collectors and 2-3\/4\" OEM rear outlet; pressure-sensor provision and plug.\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3101H630\u003c\/td\u003e\n\u003ctd\u003e6.1L SRT8 \/ 6.4L 392\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003ctd\u003eGREEN Cats\u003c\/td\u003e\n\u003ctd\u003eHeader pair and front connections; 3\" collectors and 2-3\/4\" OEM rear outlet; pressure-sensor provision and plug.\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3101H640\u003c\/td\u003e\n\u003ctd\u003e6.1L SRT8 \/ 6.4L 392\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003ctd\u003eH.O. GREEN Cats\u003c\/td\u003e\n\u003ctd\u003eHeader pair and front connections; 3\" collectors and 2-3\/4\" OEM rear outlet; pressure-sensor provision and plug.\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle and trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU \/ fitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006-2010\u003c\/td\u003e\n\u003ctd\u003eChrysler 300 C SRT8\u003c\/td\u003e\n\u003ctd\u003e6.1L V8\u003c\/td\u003e\n\u003ctd\u003e3101H410, 3101H420, 3101H430, 3101H630, 3101H640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012-2014\u003c\/td\u003e\n\u003ctd\u003eChrysler 300 SRT8\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3101H410, 3101H420, 3101H430, 3101H630, 3101H640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013\u003c\/td\u003e\n\u003ctd\u003eChrysler 300 SRT8 Core\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3101H410, 3101H420, 3101H430, 3101H630, 3101H640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2023\u003c\/td\u003e\n\u003ctd\u003eChrysler 300 C\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3101H410, 3101H420, 3101H430, 3101H630, 3101H640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008-2010\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger SRT8\u003c\/td\u003e\n\u003ctd\u003e6.1L V8\u003c\/td\u003e\n\u003ctd\u003e3101H410, 3101H420, 3101H430, 3101H630, 3101H640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011-2014\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger SRT8\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3101H410, 3101H420, 3101H430, 3101H630, 3101H640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2018\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger SRT 392\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3101H410, 3101H420, 3101H430, 3101H630, 3101H640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger Scat Pack\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3101H410, 3101H420, 3101H430, 3101H630, 3101H640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016-2023\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger R\/T Scat Pack\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3101H410, 3101H420, 3101H430, 3101H630, 3101H640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger 392 Hemi Scat Pack Shaker\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3101H410, 3101H420, 3101H430, 3101H630, 3101H640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2018\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger T\/A 392\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3101H410, 3101H420, 3101H430, 3101H630, 3101H640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2018\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger R\/T 392\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3101H410, 3101H420, 3101H430, 3101H630, 3101H640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2023\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger R\/T Scat Pack Widebody\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3101H410, 3101H420, 3101H430, 3101H630, 3101H640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006-2010\u003c\/td\u003e\n\u003ctd\u003eDodge Charger SRT8\u003c\/td\u003e\n\u003ctd\u003e6.1L V8\u003c\/td\u003e\n\u003ctd\u003e3101H410, 3101H420, 3101H430, 3101H630, 3101H640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012-2014\u003c\/td\u003e\n\u003ctd\u003eDodge Charger SRT8\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3101H410, 3101H420, 3101H430, 3101H630, 3101H640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2018\u003c\/td\u003e\n\u003ctd\u003eDodge Charger SRT 392\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3101H410, 3101H420, 3101H430, 3101H630, 3101H640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2018\u003c\/td\u003e\n\u003ctd\u003eDodge Charger R\/T Scat Pack\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3101H410, 3101H420, 3101H430, 3101H630, 3101H640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2018\u003c\/td\u003e\n\u003ctd\u003eDodge Charger Daytona 392\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3101H410, 3101H420, 3101H430, 3101H630, 3101H640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2018\u003c\/td\u003e\n\u003ctd\u003eDodge Charger R\/T 392\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3101H410, 3101H420, 3101H430, 3101H630, 3101H640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2023\u003c\/td\u003e\n\u003ctd\u003eDodge Charger Scat Pack\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3101H410, 3101H420, 3101H430, 3101H630, 3101H640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006-2008\u003c\/td\u003e\n\u003ctd\u003eDodge Magnum SRT8\u003c\/td\u003e\n\u003ctd\u003e6.1L V8\u003c\/td\u003e\n\u003ctd\u003e3101H410, 3101H420, 3101H430, 3101H630, 3101H640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine application\u003c\/td\u003e\n\u003ctd\u003eD-port 6.1 SRT8 and 6.4 392 HEMI; listed Dodge and Chrysler applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeader design\u003c\/td\u003e\n\u003ctd\u003eStainless steel long tube headers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary diameter choices\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" or 2\" primary tubes, in the listed combinations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollector diameter\u003c\/td\u003e\n\u003ctd\u003e3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear connection\u003c\/td\u003e\n\u003ctd\u003e2-3\/4\" OEM rear-exhaust connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor provision\u003c\/td\u003e\n\u003ctd\u003eExhaust-pressure-sensor provision and block-off plug\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupplied exhaust parts\u003c\/td\u003e\n\u003ctd\u003eHeader pair and matching front connection pipes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePort restriction\u003c\/td\u003e\n\u003ctd\u003eD-port only; excludes square-port 2005-2008 5.7 HEMI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTuning recommendation\u003c\/td\u003e\n\u003ctd\u003eHoonies recommends a tune for the completed header and exhaust installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eFAQs\u003c\/h2\u003e\u003ch3\u003eCan I keep my factory rear exhaust?\u003c\/h3\u003e\u003cp\u003eThese packages use a 2-3\/4\" OEM rear connection for the listed compatible applications.\u003c\/p\u003e\u003ch3\u003eAre these for a 5.7 HEMI?\u003c\/h3\u003e\u003cp\u003eThis listing is for the 6.1 SRT8 and 6.4 392 D-port applications. It is not the square-port 2005-2008 5.7 header kit.\u003c\/p\u003e\u003ch3\u003eWhich version suits a supercharger?\u003c\/h3\u003e\u003cp\u003eUse an appropriate GREEN-family catalyst within its power rating. Performance Cats are for naturally aspirated applications.\u003c\/p\u003e\u003ch3\u003eWhat is included for the exhaust pressure sensor?\u003c\/h3\u003e\u003cp\u003eThe connection pipes have the sensor provision and include a block-off plug.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"6.1L SRT8 \/ 6.4L 392 \/ 1-7\/8\" \/ Competition Only","offer_id":55646900388182,"sku":"3101H410","price":2720.25,"currency_code":"GBP","in_stock":true},{"title":"6.1L SRT8 \/ 6.4L 392 \/ 1-7\/8\" \/ Performance Cats","offer_id":55646900420950,"sku":"3101H420","price":3004.25,"currency_code":"GBP","in_stock":true},{"title":"6.1L SRT8 \/ 6.4L 392 \/ 1-7\/8\" \/ GREEN Cats","offer_id":55646900453718,"sku":"3101H430","price":3572.23,"currency_code":"GBP","in_stock":true},{"title":"6.1L SRT8 \/ 6.4L 392 \/ 2\" \/ GREEN Cats","offer_id":55646900486486,"sku":"3101H630","price":3775.64,"currency_code":"GBP","in_stock":true},{"title":"6.1L SRT8 \/ 6.4L 392 \/ 2\" \/ H.O. GREEN Cats","offer_id":55646900519254,"sku":"3101H640","price":4296.29,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/6cf052d49aa930f5f80901510fd08786_bb89f2a4-022e-4c39-bcc8-de99bcc439f0.jpg?v=1791452483"},{"product_id":"kooks-2010-2015-camaro-ss-zl1-header-conn-kits-de32c140","title":"Kooks Camaro SS \/ ZL1 Header and Connection Kits (2010-2015)","description":"\u003ch2\u003eChoose a matched Kooks upgrade for your Camaro build\u003c\/h2\u003e\u003cp\u003eBring your Camaro header upgrade together with long tube headers and their matching front connections. These Kooks packages offer 1-7\/8\" Competition Only, 1-7\/8\" GREEN and 2\" GREEN combinations, all joining the 2-1\/2\" OEM rear exhaust interface.\u003c\/p\u003e\u003cp\u003eSKUs: 2250H410, 2250H430, 2250H630\u003c\/p\u003e\u003ch2\u003eChoose the combination around your engine\u003c\/h2\u003e\u003cp\u003eThe 1-7\/8\" and 2\" primaries both feed 3\" collectors. GREEN provides the catted choices suitable for forced induction; Competition Only supplies uncatted connections for competition use. The table separates the actual packages and their supported SS or ZL1 applications.\u003c\/p\u003e\u003ch2\u003eKeep a compatible rear system\u003c\/h2\u003e\u003cp\u003eThe supplied front pipes transition from 3\" to the 2-1\/2\" factory-style rear outlet. That lets a rear exhaust using the OEM interface remain in your build, while the headers and front connections are changed together.\u003c\/p\u003e\u003ch2\u003eChoose your configuration\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"variant-comparison\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eConfiguration\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSupplied arrangement\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ engine conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2250H410\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Cat Type: Comp. Only\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; Competition Only front connections\u003c\/td\u003e\n\u003ctd\u003eUncatted; competition use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2250H430\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Cat Type: GREEN Cats\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; GREEN Cats front connections\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2250H630\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 2\"; Cat Type: GREEN Cats\u003c\/td\u003e\n\u003ctd\u003e2\" headers; GREEN Cats front connections\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010-2015\u003c\/td\u003e\n\u003ctd\u003eChevrolet Camaro SS\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2250H410, 2250H430, 2250H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011-2012\u003c\/td\u003e\n\u003ctd\u003eChevrolet Camaro 2SS\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2250H410, 2250H430, 2250H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011-2012\u003c\/td\u003e\n\u003ctd\u003eChevrolet Camaro 1SS\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2250H410, 2250H430, 2250H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012-2015\u003c\/td\u003e\n\u003ctd\u003eChevrolet Camaro ZL1\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2250H410, 2250H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKUs\u003c\/td\u003e\n\u003ctd\u003e2250H410, 2250H430, 2250H630\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplications\u003c\/td\u003e\n\u003ctd\u003eSupported Camaro SS \/ ZL1 6.2L applications; per-SKU fitment below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeader choices\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" or 2\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003e2-1\/2\" OEM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackages\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" Competition Only; 1-7\/8\" GREEN; 2\" GREEN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eHeaders and the selected front connections\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWhich kit uses 2-inch primaries?\u003c\/h3\u003e\u003cp\u003e2250H630 pairs 2\" headers with GREEN catted connections.\u003c\/p\u003e\u003ch3\u003eIs an uncatted 2-inch kit listed here?\u003c\/h3\u003e\u003cp\u003eThe Competition Only package on this page has 1-7\/8\" headers. The 2\" package uses GREEN cats.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003e2250H410: Competition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003cp\u003eThe competition-use waiver applies to 2250H410.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"1-7\/8\" \/ Comp. Only","offer_id":55646902157654,"sku":"2250H410","price":2262.0,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\" \/ GREEN Cats","offer_id":55646902190422,"sku":"2250H430","price":3113.98,"currency_code":"GBP","in_stock":true},{"title":"2\" \/ GREEN Cats","offer_id":55646902223190,"sku":"2250H630","price":3194.03,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/a071f34301ac11fa3edf153f3c96b257_66aa3ea4-29aa-48c0-a6d8-9c8a1d75d6a6.jpg?v=1791452488"},{"product_id":"kooks-2009-2023-dodge-charger-challenger-header-conn-kits-d1937168","title":"Kooks Hellcat 2-inch GREEN Header and OEM Connection Kit | 3103H630","description":"\u003ch2\u003eMake more of your Hellcat with a matched Kooks upgrade\u003c\/h2\u003e\u003cp\u003ePair 2\" Kooks long tube headers with GREEN catted front connections for your supercharged Charger or Challenger Hellcat. The kit joins the 2-3\/4\" OEM rear interface, giving you a matched front system while leaving your favourite rear exhaust in place.\u003c\/p\u003e\u003cp\u003eSKU: 3103H630\u003c\/p\u003e\u003ch2\u003eA complete header-and-connection purchase\u003c\/h2\u003e\u003cp\u003eThe 2\" primary tubing leads into 3\" collectors and the supplied GREEN pipes. The 2-3\/4\" rear outlet is the factory-style connection for this package. Choose the kit around the rear exhaust you are actually using, especially if it has been changed before.\u003c\/p\u003e\u003ch2\u003eGREEN cats for your supercharged HEMI\u003c\/h2\u003e\u003cp\u003eThe GREEN cats suit the supercharged engine, and the OEM outlets join your factory-style rear exhaust. This kit supplies the headers and front connections together. Choose the H.O. GREEN or full 3\"-outlet package if that is the catalyst or rear connection your build needs.\u003c\/p\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eMatching products\u003c\/h2\u003e\u003cp\u003eFor a 2015-2020 Challenger Hellcat, add the \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/products\/kooks-31634220?variant=55646903992662\"\u003eKooks Hellcat cat-back\u003c\/a\u003e if you want to replace the rear system as well. Its 2-3\/4\" inlet matches this OEM-outlet front package.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2022\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger SRT Hellcat\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018-2022\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger SRT Hellcat Widebody\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger SRT Demon\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2022\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger SRT Hellcat Redeye Widebody\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2022\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger SRT Hellcat Redeye\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2023\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger SRT Hellcat Redeye Widebody Jailbreak\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2023\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger SRT Hellcat Widebody Jailbreak\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2023\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger SRT Hellcat Jailbreak\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2023\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger SRT Hellcat Redeye Jailbreak\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eDodge Charger SRT Hellcat\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eDodge Charger SRT Hellcat Redeye Widebody\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eDodge Charger SRT Hellcat Widebody\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e3103H630\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eCharger \/ Challenger Hellcat 6.2L; retained trim\/year table\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e2\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnections\u003c\/td\u003e\n\u003ctd\u003eGREEN catted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003e2-3\/4\" OEM interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs this the H.O. GREEN kit?\u003c\/h3\u003e\u003cp\u003eThis package uses GREEN cats. The H.O. GREEN kits are separate configurations.\u003c\/p\u003e\u003ch3\u003eAre the connection pipes included?\u003c\/h3\u003e\u003cp\u003eYes. The kit includes the GREEN catted front pipes for its 2\" headers.\u003c\/p\u003e\u003ch3\u003eDo you recommend tuning with these headers?\u003c\/h3\u003e\u003cp\u003eWe recommend tuning with every header installation. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eTalk to us\u003c\/a\u003e about calibration for your vehicle, exhaust and other modifications.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"6.2L Hellcat \/ 2\" \/ GREEN Cats","offer_id":55646902288726,"sku":"3103H630","price":3700.94,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/6cf052d49aa930f5f80901510fd08786_9abca70e-5453-4e7c-9986-07d5b2721268.jpg?v=1791452488"},{"product_id":"kooks-2010-2015-camaro-ss-zl1-header-conn-kits-1162be86","title":"Kooks Camaro SS Performance Header Kit (2010-2015) | 2250H420","description":"\u003ch2\u003eBring a matched Kooks upgrade to your naturally aspirated SS\u003c\/h2\u003e\u003cp\u003eUpgrade your Camaro SS with 1-7\/8\" Kooks long tube headers and Performance-catted front connections. This package suits the listed LS3 and L99 6.2-litre applications, joining the 2-1\/2\" OEM rear exhaust interface.\u003c\/p\u003e\u003cp\u003eSKU: 2250H420\u003c\/p\u003e\u003ch2\u003eHeaders and front cats supplied together\u003c\/h2\u003e\u003cp\u003eThe stainless headers use 3\" collectors feeding the supplied 3\" front connections. The pipes transition to 2-1\/2\" OEM rear outlets, letting a rear system using that interface remain in the build.\u003c\/p\u003e\u003ch2\u003eChoose it for naturally aspirated use\u003c\/h2\u003e\u003cp\u003ePerformance cats are specified for naturally aspirated engines. This is an SS package; the supercharged ZL1 and a boosted SS need an appropriate forced-induction catalyst arrangement.\u003c\/p\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010-2015\u003c\/td\u003e\n\u003ctd\u003eChevrolet Camaro SS\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2250H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011-2012\u003c\/td\u003e\n\u003ctd\u003eChevrolet Camaro 2SS\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2250H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011-2012\u003c\/td\u003e\n\u003ctd\u003eChevrolet Camaro 1SS\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2250H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e2250H420\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplications\u003c\/td\u003e\n\u003ctd\u003e2010-2015 Camaro SS LS3 \/ L99 6.2L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnections\u003c\/td\u003e\n\u003ctd\u003e3\" Performance-catted front pipes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003e2-1\/2\" OEM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalyst condition\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs this the same package as the GREEN kit?\u003c\/h3\u003e\u003cp\u003eThis SKU uses Performance cats. The GREEN packages are separate choices.\u003c\/p\u003e\u003ch3\u003eCan I retain an OEM-fit rear exhaust?\u003c\/h3\u003e\u003cp\u003eYes. The front pipes join the 2-1\/2\" factory-style rear interface.\u003c\/p\u003e\u003ch3\u003eDo you recommend tuning with these headers?\u003c\/h3\u003e\u003cp\u003eWe recommend tuning with every header installation. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eTalk to us\u003c\/a\u003e about calibration for your vehicle, exhaust and other modifications.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003eCompetition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"1-7\/8\" \/ Performance Cats","offer_id":55646902387030,"sku":"2250H420","price":2546.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/a071f34301ac11fa3edf153f3c96b257_c8565283-c46d-4d83-b647-cd1b578d1b49.jpg?v=1791452489"},{"product_id":"kooks-2009-2023-dodge-charger-challenger-header-conn-kits-704faa61","title":"Kooks Hellcat 2-inch H.O. GREEN Header and OEM Connection Kit | 3103H640","description":"\u003ch2\u003eUpgrade your Hellcat without giving up the rear exhaust you like\u003c\/h2\u003e\u003cp\u003ePair 2\" Kooks long tube headers with H.O. GREEN catted connections for your supercharged Hellcat. This kit finishes at the 2-3\/4\" OEM rear interface, making it the factory-connection choice alongside the separate full 3\"-outlet package.\u003c\/p\u003e\u003cp\u003eSKU: 3103H640\u003c\/p\u003e\u003ch2\u003eA matched high-output front system\u003c\/h2\u003e\u003cp\u003eThe 2\" primaries lead into 3\" collectors and the supplied H.O. GREEN catted front pipes. The 2-3\/4\" rear outlet lets those parts join the OEM exhaust interface. It is a meaningful upgrade for a car whose engine, headers and catalyst choice should be considered together.\u003c\/p\u003e\u003ch2\u003eChoose the rear outlet before ordering\u003c\/h2\u003e\u003cp\u003e3103H640 is the OEM-outlet kit. If you are using a rear system that needs a full 3\" connection, 3103H641 is the matching alternative. Choosing the correct outlet now keeps the kit suited to the exhaust already on your car.\u003c\/p\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eMatching products\u003c\/h2\u003e\u003cp\u003eFor a 2015-2020 Challenger Hellcat, add the \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/products\/kooks-31634220?variant=55646903992662\"\u003eKooks Hellcat cat-back\u003c\/a\u003e if you want to replace the rear system as well. Its 2-3\/4\" inlet matches this OEM-outlet front package.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2022\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger SRT Hellcat\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H640\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018-2022\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger SRT Hellcat Widebody\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H640\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger SRT Demon\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H640\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2022\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger SRT Hellcat Redeye Widebody\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H640\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2022\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger SRT Hellcat Redeye\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H640\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eDodge Charger SRT Hellcat\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H640\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eDodge Charger SRT Hellcat Widebody\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H640\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eDodge Charger SRT Hellcat Redeye Widebody\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H640\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e3103H640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eCharger \/ Challenger Hellcat 6.2L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e2\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnections\u003c\/td\u003e\n\u003ctd\u003eH.O. GREEN catted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003e2-3\/4\" OEM interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eHow is it different from 3103H641?\u003c\/h3\u003e\u003cp\u003eThis kit uses the 2-3\/4\" OEM rear outlet. 3103H641 has a full 3\" outlet for a matching aftermarket rear system.\u003c\/p\u003e\u003ch3\u003eDoes the price include the front cats?\u003c\/h3\u003e\u003cp\u003eThe H.O. GREEN catted connection pipes are part of the kit.\u003c\/p\u003e\u003ch3\u003eDo you recommend tuning with these headers?\u003c\/h3\u003e\u003cp\u003eWe recommend tuning with every header installation. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eTalk to us\u003c\/a\u003e about calibration for your vehicle, exhaust and other modifications.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"6.2L Hellcat \/ 2\" \/ H.O. GREEN Cats","offer_id":55646902813014,"sku":"3103H640","price":4221.59,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/6cf052d49aa930f5f80901510fd08786_679578a4-07d7-48e7-acdb-03b816e30e64.jpg?v=1791452490"},{"product_id":"kooks-2009-2023-dodge-charger-challenger-header-conn-kits-057be65b","title":"Kooks Hellcat 2-inch H.O. GREEN Header Kit with Full 3-inch Outlets | 3103H641","description":"\u003ch2\u003eA full 3-inch connection for your Hellcat build\u003c\/h2\u003e\u003cp\u003eIf your Hellcat exhaust is being built around full 3\" pipework, choose the Kooks kit with a 3\" rear outlet. It combines 2\" long tube headers and H.O. GREEN catted connections, keeping the front conversion matched to that larger rear system instead of reducing to the factory outlet.\u003c\/p\u003e\u003cp\u003eSKU: 3103H641\u003c\/p\u003e\u003ch2\u003eChoose the full-size rear interface\u003c\/h2\u003e\u003cp\u003e3103H641 uses 2\" primaries, 3\" collectors and 3\"-outlet H.O. GREEN connection pipes. The rear exhaust needs a matching 3\" connection. For a factory-style rear interface, the separate 3103H640 kit uses a 2-3\/4\" outlet.\u003c\/p\u003e\u003ch2\u003eMatch the upgrade to your Hellcat\u003c\/h2\u003e\u003cp\u003eThe kit is for the 6.2-litre supercharged Charger and Challenger Hellcat applications. H.O. GREEN gives you the appropriate high-output catalyst family for this kind of engine. Plan the headers, front pipes and rear system together so the finished exhaust matches your build.\u003c\/p\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eDodge Charger SRT Hellcat Redeye Widebody\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H641\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eDodge Charger SRT Hellcat Widebody\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H641\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e3103H641\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eCharger Hellcat 6.2L; the two listed 2021-2023 Widebody applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e2\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalysts\u003c\/td\u003e\n\u003ctd\u003eH.O. GREEN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003eFull 3\" outlet for a matching aftermarket exhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear exhaust requirement\u003c\/td\u003e\n\u003ctd\u003eMatching 3\" system; does not connect directly to OEM exhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWill it connect straight to the factory exhaust?\u003c\/h3\u003e\u003cp\u003eThis version has a full 3\" rear outlet and needs a matching rear system. The OEM-outlet kit is 3103H640.\u003c\/p\u003e\u003ch3\u003eWhat is included?\u003c\/h3\u003e\u003cp\u003eThe 2\" long tube headers and matching H.O. GREEN catted front connection pipes.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"6.2L Hellcat \/ 2\" \/ H.O. GREEN Cats (3\" Outlet)","offer_id":55646903042390,"sku":"3103H641","price":4269.98,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/6cf052d49aa930f5f80901510fd08786_699ccb3b-8724-4e48-b044-cb0433ce9ff4.jpg?v=1791452490"},{"product_id":"kooks-2009-2023-dodge-charger-challenger-header-conn-kits-d02ada6d","title":"Kooks HEMI 2-inch Street\/Strip Header and Connection Kit | 3103H6SS","description":"\u003ch2\u003eA serious HEMI upgrade with two front-pipe setups\u003c\/h2\u003e\u003cp\u003eBuild a more complete exhaust upgrade for your HEMI with 2\" Kooks headers, H.O. GREEN catted connections and a separate set of Competition Only front pipes. The Street\/Strip package gives you both pipe arrangements in one purchase, with the uncatted set reserved for track-only use.\u003c\/p\u003e\u003cp\u003eSKU: 3103H6SS\u003c\/p\u003e\u003ch2\u003eMore than a header-and-cat kit\u003c\/h2\u003e\u003cp\u003eThe 304 stainless steel headers have 2\" mandrel-bent primaries, 3\" collectors and 3\/8\" laser-cut flanges. The H.O. GREEN cats use 4-1\/2\" bodies and a 300-cell substrate. Gaskets, O2 extensions, clamps and the bolt kit are included, along with the separate Competition Only connections.\u003c\/p\u003e\u003ch2\u003eChoose for your HEMI application\u003c\/h2\u003e\u003cp\u003eThis package covers the supported 6.1\/6.4 HEMI cars and 6.2 Hellcat applications shown below. Choose against your exact vehicle, trim and installed engine when planning the full header and connection upgrade.\u003c\/p\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006-2010\u003c\/td\u003e\n\u003ctd\u003eChrysler 300 C SRT8\u003c\/td\u003e\n\u003ctd\u003e6.1L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012-2014\u003c\/td\u003e\n\u003ctd\u003eChrysler 300 SRT8\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013\u003c\/td\u003e\n\u003ctd\u003eChrysler 300 SRT8 Core\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2023\u003c\/td\u003e\n\u003ctd\u003eChrysler 300 C\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008-2010\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger SRT8\u003c\/td\u003e\n\u003ctd\u003e6.1L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011-2014\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger SRT8\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2022\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger SRT Hellcat\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2018\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger SRT 392\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger Scat Pack\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016-2023\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger R\/T Scat Pack\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger 392 Hemi Scat Pack Shaker\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2018\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger T\/A 392\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2018\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger R\/T 392\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018-2022\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger SRT Hellcat Widebody\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger SRT Demon\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2023\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger R\/T Scat Pack Widebody\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2022\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger SRT Hellcat Redeye\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2022\u003c\/td\u003e\n\u003ctd\u003eDodge Challenger SRT Hellcat Redeye Widebody\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006-2010\u003c\/td\u003e\n\u003ctd\u003eDodge Charger SRT8\u003c\/td\u003e\n\u003ctd\u003e6.1L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012-2014\u003c\/td\u003e\n\u003ctd\u003eDodge Charger SRT8\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eDodge Charger SRT Hellcat\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2018\u003c\/td\u003e\n\u003ctd\u003eDodge Charger SRT 392\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2018\u003c\/td\u003e\n\u003ctd\u003eDodge Charger R\/T Scat Pack\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2018\u003c\/td\u003e\n\u003ctd\u003eDodge Charger R\/T 392\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2018\u003c\/td\u003e\n\u003ctd\u003eDodge Charger Daytona 392\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2023\u003c\/td\u003e\n\u003ctd\u003eDodge Charger Scat Pack\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eDodge Charger SRT Hellcat Widebody\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eDodge Charger SRT Hellcat Redeye Widebody\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006-2008\u003c\/td\u003e\n\u003ctd\u003eDodge Magnum SRT8\u003c\/td\u003e\n\u003ctd\u003e6.1L V8\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003ctd\u003eRear-wheel drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e3103H6SS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e2\" primaries; 3\" collectors; 3\/8\" laser-cut flanges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatted connections\u003c\/td\u003e\n\u003ctd\u003eH.O. GREEN, 4-1\/2\" bodies and 300-cell substrate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdditional pipes\u003c\/td\u003e\n\u003ctd\u003eSeparate Competition Only front connections for track-only use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitting parts\u003c\/td\u003e\n\u003ctd\u003eGaskets, O2 extensions, clamps and bolt kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWhat does Street\/Strip add?\u003c\/h3\u003e\u003cp\u003eYou receive H.O. GREEN catted connections plus separate Competition Only pipes to swap in for track-only use.\u003c\/p\u003e\u003ch3\u003eIs this for an early square-port 5.7 HEMI?\u003c\/h3\u003e\u003cp\u003eChoose this package for the supported D-port applications. It is not the kit for a 2005-2008 square-port 5.7 HEMI.\u003c\/p\u003e\u003ch3\u003eDo you recommend tuning with these headers?\u003c\/h3\u003e\u003cp\u003eWe recommend tuning with every header installation. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eTalk to us\u003c\/a\u003e about calibration for your vehicle, exhaust and other modifications.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003eCompetition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003cp\u003eThe competition-use waiver applies to 3103H6SS.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"6.1L SRT8 \/ 6.4L 392 \/ 2\" \/ Street\/Strip","offer_id":55646903304534,"sku":"3103H6SS","price":4448.31,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/6cf052d49aa930f5f80901510fd08786_018172f9-a270-4644-a7e7-ef3e8eb991fb.jpg?v=1791452491"},{"product_id":"kooks-2006-2010-jeep-wk1-grand-cherokee-srt8-header-conn-kits","title":"Kooks Grand Cherokee SRT8 6.1 Header Kit (2006-2010) | 3400H420","description":"\u003ch2\u003eUpgrade your SRT8 headers and front connections together\u003c\/h2\u003e\u003cp\u003ePair your 6.1-litre Grand Cherokee SRT8 with Kooks stainless long tube headers and matching Performance-catted connections. This combined kit joins the 3\" OEM rear exhaust, upgrading the front system while retaining a compatible cat-back.\u003c\/p\u003e\u003cp\u003eSKU: 3400H420\u003c\/p\u003e\u003ch2\u003eThe full front conversion in one purchase\u003c\/h2\u003e\u003cp\u003eThe 1-7\/8\" primaries feed 3\" collectors and the supplied 3\" catted connections. Both the header sizing and rear connection are specified for the 2006-2010 SRT8 6.1 application.\u003c\/p\u003e\u003ch2\u003eFor a naturally aspirated HEMI\u003c\/h2\u003e\u003cp\u003eThe supplied Performance cats are specified for naturally aspirated use. If your 6.1 has a supercharger or turbocharger, choose a catalyst arrangement suitable for that setup rather than treating all catted kits as interchangeable.\u003c\/p\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e2006-2010\u003c\/td\u003e\n\u003ctd\u003eJeep Grand Cherokee SRT8\u003c\/td\u003e\n\u003ctd\u003e6.1L V8\u003c\/td\u003e\n\u003ctd\u003e3400H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e3400H420\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2006-2010 Jeep Grand Cherokee SRT8 6.1L V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnections\u003c\/td\u003e\n\u003ctd\u003ePerformance-catted; 3\" pipework\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003e3\" OEM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalyst condition\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs this for the later 6.4-litre Jeep?\u003c\/h3\u003e\u003cp\u003eThis is the 2006-2010 6.1-litre SRT8 package.\u003c\/p\u003e\u003ch3\u003eDoes it include the catted pipes?\u003c\/h3\u003e\u003cp\u003eYes. The headers and Performance-catted front connections are supplied together.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003eCompetition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"Performance Cats","offer_id":55646904779094,"sku":"3400H420","price":3381.26,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/c27e4d9e685c9114f11c13c1ce761d48_d3b628b7-33a3-423b-b879-6652bcffee90.jpg?v=1791452496"},{"product_id":"kooks-2016-2024-camaro-ss-zl1-header-conn-kits-4bf9ee46","title":"Kooks Header and Connection Kits for Camaro SS \/ ZL1 (2016-2024)","description":"\u003ch2\u003eMake your Camaro sound as purposeful as it looks\u003c\/h2\u003e\u003cp\u003eChoose the headers and connections together for a complete long tube conversion on your sixth-generation Camaro. These Kooks kits cover the SS 6.2 LT1 from 2016-2024 and ZL1 6.2 LT4 from 2017-2024, with primary and catalyst combinations to suit naturally aspirated and supercharged builds. The OEM rear connection lets you retain the compatible factory mufflers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSKUs:\u003c\/strong\u003e 2260H410, 2260H430, 2260H630, 2260H640, 2260H6SS\u003c\/p\u003e\u003ch2\u003eChoose for your SS or ZL1 build\u003c\/h2\u003e\u003cp\u003eThe straight 1-7\/8\" and 2\" primary options use 3\" collectors. GREEN and H.O. GREEN catalysts are suitable for naturally aspirated or forced-induction applications within their ratings. H.O. GREEN uses a larger 4-1\/2\" body with 300 CPSI substrate, giving higher-output builds a different catalyst specification from the 4\"-body, 400 CPSI GREEN version.\u003c\/p\u003e\u003ch2\u003eA clear choice with Street\/Strip\u003c\/h2\u003e\u003cp\u003eStreet\/Strip includes the 2\" primary headers and H.O. GREEN catted connections, plus separate competition-only front pipes. Both pipe sets are supplied. The additional track pipes are not for public-road use, and this package requires the Kooks competition-use waiver.\u003c\/p\u003e\u003ch2\u003eKeep the rear exhaust, with a fitted connection\u003c\/h2\u003e\u003cp\u003eThese kits finish at a 2-3\/4\" OEM rear connection. The factory exhaust must be cut to install the supplied connections. We recommend professional fitting so the cut, pipe alignment, clamps and sensor wiring are dealt with together, followed by a clearance and leak check.\u003c\/p\u003e\u003ch2\u003eCalibration for the completed exhaust\u003c\/h2\u003e\u003cp\u003ePlan the tune around the final header and catalyst combination. Your engine upgrades and rear mufflers affect the result, so choose the full specification before arranging the calibration. Check the exhaust fasteners after the first heat cycle.\u003c\/p\u003e\u003ch2\u003eTuning for your header upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend a tune with these headers, matched to your engine and the completed exhaust. For 2016-2021 cars, see our \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/products\/chevrolet-camaro-ecu-tuning-2016-2021\"\u003eCamaro ECU tuning\u003c\/a\u003e. For 2022-2024 cars, \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003econtact us\u003c\/a\u003e to discuss your Camaro.\u003c\/p\u003e\u003ch2\u003eChoose your option\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eHeader Size\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eCat Type\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ contents\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eStated use restriction\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2260H410\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\"\u003c\/td\u003e\n\u003ctd\u003eComp. Only\u003c\/td\u003e\n\u003ctd\u003eCatalyst-free competition connections; 2-3\/4\" OEM rear outlet; factory exhaust cutting required.\u003c\/td\u003e\n\u003ctd\u003eCompetition, off-road and track use only. Not for use on public roads. Kooks competition-use waiver required.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2260H430\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\"\u003c\/td\u003e\n\u003ctd\u003eGREEN Cats\u003c\/td\u003e\n\u003ctd\u003eGREEN catted connections; 2-3\/4\" OEM rear outlet; factory exhaust cutting required.\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2260H630\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003ctd\u003eGREEN Cats\u003c\/td\u003e\n\u003ctd\u003eGREEN catted connections; 2-3\/4\" OEM rear outlet; factory exhaust cutting required.\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2260H640\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003ctd\u003eH.O. GREEN Cats\u003c\/td\u003e\n\u003ctd\u003eH.O. GREEN catted connections; 2-3\/4\" OEM rear outlet; factory exhaust cutting required.\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2260H6SS\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003ctd\u003eStreet\/Strip\u003c\/td\u003e\n\u003ctd\u003eH.O. GREEN catted connections AND separate competition-only front pipes; OEM rear outlet; factory exhaust cutting required.\u003c\/td\u003e\n\u003ctd\u003eCompetition, off-road and track use only. Not for use on public roads. Kooks competition-use waiver required.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle and trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU \/ fitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016-2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet Camaro SS\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2260H410, 2260H430, 2260H630, 2260H640, 2260H6SS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet Camaro ZL1\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2260H410, 2260H430, 2260H630, 2260H640, 2260H6SS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eCamaro SS 6.2 LT1, 2016-2024; Camaro ZL1 6.2 LT4, 2017-2024\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeader design\u003c\/td\u003e\n\u003ctd\u003eStainless steel long tube headers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary diameter choices\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" or 2\" primary tubes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollector diameter\u003c\/td\u003e\n\u003ctd\u003e3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear connection\u003c\/td\u003e\n\u003ctd\u003e2-3\/4\" OEM rear-exhaust connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupplied exhaust parts\u003c\/td\u003e\n\u003ctd\u003eHeaders and matching front connection pipes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStreet\/Strip contents\u003c\/td\u003e\n\u003ctd\u003eH.O. GREEN catted connections plus separate competition-only front pipes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitting requirement\u003c\/td\u003e\n\u003ctd\u003eFactory exhaust must be cut for the OEM rear connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTuning recommendation\u003c\/td\u003e\n\u003ctd\u003eHoonies recommends a tune for the completed header and exhaust installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eFAQs\u003c\/h2\u003e\u003ch3\u003eWill I have to cut the factory exhaust?\u003c\/h3\u003e\u003cp\u003eYes. The supplied OEM connection pipes require a cut in the original exhaust. Have the installer fit and align the complete system before completing the connection.\u003c\/p\u003e\u003ch3\u003eDoes this fit a 2016 ZL1?\u003c\/h3\u003e\u003cp\u003eThe ZL1 application begins in 2017. The 2016 start year applies to the SS LT1.\u003c\/p\u003e\u003ch3\u003eIs Street\/Strip just the competition-only version?\u003c\/h3\u003e\u003cp\u003eNo. It supplies H.O. GREEN catted connections and a separate set of competition-only pipes with the headers.\u003c\/p\u003e\u003ch3\u003eCan I retain the factory mufflers?\u003c\/h3\u003e\u003cp\u003eYes, using the compatible 2-3\/4\" OEM rear connection and the required fitting work.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"1-7\/8\" \/ Comp. Only","offer_id":55646905205078,"sku":"2260H410","price":2241.45,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\" \/ GREEN Cats","offer_id":55646905237846,"sku":"2260H430","price":3093.43,"currency_code":"GBP","in_stock":true},{"title":"2\" \/ GREEN Cats","offer_id":55646905270614,"sku":"2260H630","price":3280.21,"currency_code":"GBP","in_stock":true},{"title":"2\" \/ H.O. GREEN Cats","offer_id":55646905303382,"sku":"2260H640","price":3800.86,"currency_code":"GBP","in_stock":true},{"title":"2\" \/ Street\/Strip","offer_id":55646905336150,"sku":"2260H6SS","price":3991.55,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/f3954f41cef927cecdc1cbaddffbbfc5_34248bd5-9fed-4ef1-b3f5-e80d49c63ea2.jpg?v=1791452497"},{"product_id":"kooks-2016-2024-camaro-ss-zl1-header-conn-kits-eb84f71f","title":"Kooks Camaro SS LT1 Performance Header Kit (2016-2024) | 2260H420","description":"\u003ch2\u003eGive your LT1 Camaro a matched front exhaust upgrade\u003c\/h2\u003e\u003cp\u003ePair your naturally aspirated Camaro SS with 1-7\/8\" Kooks long tube headers and Performance-catted front connections. The kit joins the 2-3\/4\" OEM rear interface, with a factory exhaust cut required for installation.\u003c\/p\u003e\u003cp\u003eSKU: 2260H420\u003c\/p\u003e\u003ch2\u003eKeep a compatible rear exhaust\u003c\/h2\u003e\u003cp\u003eThe stainless headers use 3\" collectors and the supplied front pipes transition from 3\" to 2-3\/4\" OEM outlets. That lets you retain a rear system using the factory interface as part of the front conversion.\u003c\/p\u003e\u003ch2\u003ePlan the fitting work with your upgrade\u003c\/h2\u003e\u003cp\u003eThe factory exhaust must be cut to install this kit. The package is specified for the 2016-2024 SS LT1 6.2, with Performance cats for naturally aspirated use. A supercharged ZL1 or boosted SS needs the appropriate forced-induction catalyst choice.\u003c\/p\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning for the header installation. Our \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/products\/chevrolet-camaro-ecu-tuning-2016-2021\"\u003e2016-2021 Camaro custom tuning\u003c\/a\u003e service covers those years. For a 2022-2024 car, \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003econtact us\u003c\/a\u003e to discuss calibration for the new exhaust and your other hardware.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e2016-2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet Camaro SS\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2260H420\u003c\/td\u003e\n\u003ctd\u003eFactory exhaust cut required\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e2260H420\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2016-2024 Camaro SS, LT1 6.2L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnections\u003c\/td\u003e\n\u003ctd\u003e3\" Performance-catted front pipes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003e2-3\/4\" OEM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eFactory exhaust must be cut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalyst condition\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eDoes installation involve cutting the factory exhaust?\u003c\/h3\u003e\u003cp\u003eYes. That fitting requirement is specified for this package.\u003c\/p\u003e\u003ch3\u003eIs this the ZL1 kit?\u003c\/h3\u003e\u003cp\u003eThis Performance-catted kit is for the naturally aspirated SS LT1 application.\u003c\/p\u003e\u003ch3\u003eDo you recommend tuning with these headers?\u003c\/h3\u003e\u003cp\u003eWe recommend tuning with every header installation. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eTalk to us\u003c\/a\u003e about calibration for your vehicle, exhaust and other modifications.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003eCompetition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"1-7\/8\" \/ Performance Cats","offer_id":55646906450262,"sku":"2260H420","price":2525.44,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/f3954f41cef927cecdc1cbaddffbbfc5_dbb1e32c-7543-4cac-8faa-dd3cebfa31cf.jpg?v=1791452497"},{"product_id":"kooks-2004-2007-cadillac-cts-v-header-conn-kits","title":"Kooks Cadillac CTS-V LS6 \/ LS2 Header Kits (2004-2007)","description":"\u003ch2\u003eBring a matched Kooks upgrade to your first-generation CTS-V\u003c\/h2\u003e\u003cp\u003eUpgrade your CTS-V with 1-7\/8\" stainless long tube headers and matching front connections. Choose Competition Only or Performance cats, both joining the factory resonator through the 2-1\/2\" OEM interface. Gaskets and installation hardware are included.\u003c\/p\u003e\u003cp\u003eSKUs: 2310H410, 2310H420\u003c\/p\u003e\u003ch2\u003eKeep the factory resonator connection\u003c\/h2\u003e\u003cp\u003eThe headers use 3\" collectors, and the supplied pipes transition to the 2-1\/2\" OEM rear joint at the factory resonator. That gives the first-generation CTS-V its specific connection arrangement while retaining a compatible rear system.\u003c\/p\u003e\u003ch2\u003eChoose for the LS6 or LS2 build\u003c\/h2\u003e\u003cp\u003eThe kit covers the 5.7-litre LS6 in 2004-2005 and the 6.0-litre LS2 in 2006-2007. Performance cats are for naturally aspirated use. Competition Only is the uncatted choice for competition use.\u003c\/p\u003e\u003ch2\u003eChoose your configuration\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"variant-comparison\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eConfiguration\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSupplied arrangement\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ engine conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2310H410\u003c\/td\u003e\n\u003ctd\u003eCat Type: Competition Only\u003c\/td\u003e\n\u003ctd\u003eHeaders; Competition Only front connections; Gaskets and installation hardware included\u003c\/td\u003e\n\u003ctd\u003eUncatted; competition use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2310H420\u003c\/td\u003e\n\u003ctd\u003eCat Type: Performance Cats\u003c\/td\u003e\n\u003ctd\u003eHeaders; Performance Cats front connections; Gaskets and installation hardware included\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004-2005\u003c\/td\u003e\n\u003ctd\u003eCadillac CTS V\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e2310H410, 2310H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006-2007\u003c\/td\u003e\n\u003ctd\u003eCadillac CTS V\u003c\/td\u003e\n\u003ctd\u003e6.0L V8\u003c\/td\u003e\n\u003ctd\u003e2310H410, 2310H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKUs\u003c\/td\u003e\n\u003ctd\u003e2310H410, 2310H420\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2004-2005 CTS-V LS6 5.7L; 2006-2007 CTS-V LS2 6.0L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear connection\u003c\/td\u003e\n\u003ctd\u003e2-1\/2\" OEM joint to factory resonator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChoices\u003c\/td\u003e\n\u003ctd\u003eCompetition Only or Performance cats\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eHeaders, selected connections, gaskets and installation hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePerformance condition\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWhere do the pipes join the retained exhaust?\u003c\/h3\u003e\u003cp\u003eThey connect to the factory resonator at the OEM rear interface.\u003c\/p\u003e\u003ch3\u003eAre gaskets included?\u003c\/h3\u003e\u003cp\u003eYes. Gaskets and the required installation hardware are included with both packages.\u003c\/p\u003e\u003ch3\u003eDo you recommend tuning with these headers?\u003c\/h3\u003e\u003cp\u003eWe recommend tuning with every header installation. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eTalk to us\u003c\/a\u003e about calibration for your vehicle, exhaust and other modifications.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003eCompetition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003cp\u003eThe competition-use waiver applies to 2310H410.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"Competition Only","offer_id":55646907171158,"sku":"2310H410","price":2558.75,"currency_code":"GBP","in_stock":true},{"title":"Performance Cats","offer_id":55646907203926,"sku":"2310H420","price":2842.74,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/eb3c98ee6581876330ebaf754b2f292a_b4d0fd42-b7bd-41c0-a0f4-eb2bf88c6616.jpg?v=1791452500"},{"product_id":"kooks-2012-2020-grand-cherokee-durango-6-4l-6-2l-header-conn-kits-2cd7f88d","title":"Kooks Header Kits for Grand Cherokee SRT \/ Trackhawk \u0026 Durango SRT","description":"\u003ch2\u003eGive your performance SUV the V8 soundtrack you want\u003c\/h2\u003e\u003cp\u003eThe appeal of a HEMI-powered SUV is how much fun it can add to an ordinary journey. For an exhaust upgrade, these Kooks packages combine stainless long tube headers and OEM connection pipes for the listed Grand Cherokee SRT, Trackhawk and Durango SRT applications. The table gives the confirmed model-year scope for each option, so the header and catalyst choice stays matched to your vehicle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSKUs:\u003c\/strong\u003e 3410H411, 3410H431, 3410H611, 3410H631, 3410H641\u003c\/p\u003e\u003ch2\u003eChoose the header and catalyst combination\u003c\/h2\u003e\u003cp\u003eBoth 1-7\/8\" and 2\" primary options use 3\" collectors and a 3\" OEM rear connection. GREEN catalysts support naturally aspirated and forced-induction applications within their rating. H.O. GREEN uses a larger catalyst body and a 300 CPSI substrate for higher-output builds. Competition Only connections provide catalyst-free pipes for a dedicated competition exhaust.\u003c\/p\u003e\u003ch2\u003eRetain your compatible rear exhaust\u003c\/h2\u003e\u003cp\u003eThe included connection pipes link the long tube headers to the OEM rear exhaust. The 2\" GREEN kit includes gaskets, bolts, clamps and O2 extensions, while the catted kits provide the exhaust parts needed for the compatible OEM connection.\u003c\/p\u003e\u003ch2\u003eAllow for the fitting work\u003c\/h2\u003e\u003cp\u003eWe recommend professional fitting and calibration for the finished long tube conversion. Installation of the 2\" headers involves engine-cradle access, so this is a job to plan with the installer. Sensor routing, heat clearances and a first heat-cycle fastener check are part of finishing the system properly.\u003c\/p\u003e\u003ch2\u003eTuning for your header upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend a tune with these headers, matched to your engine and the completed exhaust. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eTalk to us about tuning\u003c\/a\u003e for your vehicle and modifications.\u003c\/p\u003e\u003ch2\u003eChoose your option\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eHeader Size\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eCat Type\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ contents\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eStated use restriction\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e3410H411\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\"\u003c\/td\u003e\n\u003ctd\u003eComp. Only\u003c\/td\u003e\n\u003ctd\u003eGrand Cherokee SRT 6.4 2012-2020; Trackhawk 6.2 2018-2020; Durango SRT 6.4 2018-2020. Catalyst-free connections.\u003c\/td\u003e\n\u003ctd\u003eCompetition, off-road and track use only. Not for use on public roads. Kooks competition-use waiver required.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3410H431\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\"\u003c\/td\u003e\n\u003ctd\u003eGREEN Cats\u003c\/td\u003e\n\u003ctd\u003eGrand Cherokee SRT 6.4 2012-2020; Trackhawk 6.2 2018-2020; Durango SRT 6.4 2018-2020. GREEN catted connections.\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3410H611\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003ctd\u003eComp. Only\u003c\/td\u003e\n\u003ctd\u003eGrand Cherokee SRT 6.4 2012-2020; Trackhawk 6.2 2018-2020; Durango SRT 6.4 2018-2020. Catalyst-free connections.\u003c\/td\u003e\n\u003ctd\u003eCompetition, off-road and track use only. Not for use on public roads. Kooks competition-use waiver required.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3410H631\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003ctd\u003eGREEN Cats\u003c\/td\u003e\n\u003ctd\u003eGrand Cherokee SRT 6.4 2012-2021; Trackhawk 6.2 2018-2021; Durango SRT 6.4 2018-2022. GREEN catted connections; gaskets, bolts, clamps and O2 extensions included.\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3410H641\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003ctd\u003eH.O. GREEN Cats\u003c\/td\u003e\n\u003ctd\u003eGrand Cherokee SRT 6.4 2012-2021; Trackhawk 6.2 2018-2021; Durango SRT 6.4 2018-2022. H.O. GREEN catted connections.\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle and trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU \/ fitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018-2022\u003c\/td\u003e\n\u003ctd\u003eDodge Durango SRT\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3410H631, 3410H641. 3410H411, 3410H431 and 3410H611 cover this application only through 2020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2022\u003c\/td\u003e\n\u003ctd\u003eDodge Durango SRT 392\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3410H631, 3410H641\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012-2015\u003c\/td\u003e\n\u003ctd\u003eJeep Grand Cherokee SRT8\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3410H411, 3410H431, 3410H611, 3410H631, 3410H641\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013-2021\u003c\/td\u003e\n\u003ctd\u003eJeep Grand Cherokee SRT\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3410H631, 3410H641. 3410H411, 3410H431 and 3410H611 cover this application only through 2020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018-2021\u003c\/td\u003e\n\u003ctd\u003eJeep Grand Cherokee Trackhawk\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3410H631, 3410H641. 3410H411, 3410H431 and 3410H611 cover this application only through 2020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eListed WK2 Grand Cherokee SRT 6.4, Trackhawk 6.2 and Durango SRT 6.4; years vary by SKU below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeader design\u003c\/td\u003e\n\u003ctd\u003eStainless steel long tube headers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary diameter choices\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" or 2\" primary tubes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollector and rear outlet\u003c\/td\u003e\n\u003ctd\u003e3\" collectors and 3\" OEM rear connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupplied exhaust parts\u003c\/td\u003e\n\u003ctd\u003eHeader pair and matching connection pipes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2\" GREEN fitting parts\u003c\/td\u003e\n\u003ctd\u003eGaskets, bolts, clamps and O2 extensions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation detail\u003c\/td\u003e\n\u003ctd\u003e2\" header installation involves engine-cradle access\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTuning recommendation\u003c\/td\u003e\n\u003ctd\u003eHoonies recommends a tune for the completed header and exhaust installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eFAQs\u003c\/h2\u003e\u003ch3\u003eCan I keep the original rear exhaust?\u003c\/h3\u003e\u003cp\u003eYes, on the listed compatible application. The packages include a 3\" OEM rear connection.\u003c\/p\u003e\u003ch3\u003eAre the model years identical for every kit?\u003c\/h3\u003e\u003cp\u003eNo. Use the model-year details beside the selected SKU. Some 2\" catted options cover later applications than the earlier competition and 1-7\/8\" kits.\u003c\/p\u003e\u003ch3\u003eWhich kit suits a modified Trackhawk?\u003c\/h3\u003e\u003cp\u003eMatch the primary size to the engine and choose a GREEN-family catalyst with the appropriate capacity for the supercharged build. We can help you compare the listed combinations.\u003c\/p\u003e\u003ch3\u003eIs this a simple manifold swap?\u003c\/h3\u003e\u003cp\u003eIt is a long tube and connection-pipe conversion. Professional installation is recommended; the 2\" header fitting procedure includes engine-cradle access.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"1-7\/8\" \/ Comp. Only","offer_id":55646907695446,"sku":"3410H411","price":3234.81,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\" \/ GREEN Cats","offer_id":55646907728214,"sku":"3410H431","price":4086.79,"currency_code":"GBP","in_stock":true},{"title":"2\" \/ Comp. Only","offer_id":55646907760982,"sku":"3410H611","price":3349.54,"currency_code":"GBP","in_stock":true},{"title":"2\" \/ GREEN Cats","offer_id":55646907793750,"sku":"3410H631","price":4201.52,"currency_code":"GBP","in_stock":true},{"title":"2\" \/ H.O. GREEN Cats","offer_id":55646907826518,"sku":"3410H641","price":4722.18,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/3b1499841e147f42e6db9ad2b7342d6b_e4e123b3-4587-4ae2-a6bc-af18d733ec18.jpg?v=1791452502"},{"product_id":"kooks-2012-2020-grand-cherokee-durango-6-4l-6-2l-header-conn-kits-87c06638","title":"Kooks Jeep SRT \/ Durango SRT 6.4 Header Kit (2012-2020) | 3410H421","description":"\u003ch2\u003eBring out the character of your naturally aspirated 6.4 HEMI\u003c\/h2\u003e\u003cp\u003eGive your SRT a coordinated Kooks front exhaust upgrade with 1-7\/8\" long tube headers and Performance-catted connections. The 3\" pipework joins the OEM rear exhaust, making this a combined header-and-connection purchase for the supported naturally aspirated 6.4-litre Jeep and Durango applications.\u003c\/p\u003e\u003cp\u003eSKU: 3410H421\u003c\/p\u003e\u003ch2\u003eA matched front system for the 6.4\u003c\/h2\u003e\u003cp\u003eThe headers use 3\" collectors and the supplied connections have 3\" OEM rear outlets. You can keep the rear exhaust that suits your SRT while upgrading the front of the system.\u003c\/p\u003e\u003ch2\u003eChoose the correct engine application\u003c\/h2\u003e\u003cp\u003eThis Performance-catted package is for naturally aspirated 6.4-litre engines. The fitment table covers Grand Cherokee SRT\/SRT8 within 2012-2020 and Durango SRT within 2018-2020. Supercharged Trackhawk and Hellcat applications need an appropriate forced-induction catalyst package.\u003c\/p\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018-2020\u003c\/td\u003e\n\u003ctd\u003eDodge Durango SRT\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3410H421\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012-2015\u003c\/td\u003e\n\u003ctd\u003eJeep Grand Cherokee SRT8\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3410H421\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014-2020\u003c\/td\u003e\n\u003ctd\u003eJeep Grand Cherokee SRT\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3410H421\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e3410H421\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine\u003c\/td\u003e\n\u003ctd\u003e6.4L naturally aspirated HEMI V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplications\u003c\/td\u003e\n\u003ctd\u003eGrand Cherokee SRT\/SRT8 2012-2020; Durango SRT 2018-2020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnections\u003c\/td\u003e\n\u003ctd\u003ePerformance-catted; 3\" OEM rear outlets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalyst condition\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs this the Trackhawk kit?\u003c\/h3\u003e\u003cp\u003eChoose a forced-induction catalyst package for a supercharged Trackhawk. This Performance-catted kit is for the listed naturally aspirated 6.4 applications.\u003c\/p\u003e\u003ch3\u003eAre the connections supplied with the headers?\u003c\/h3\u003e\u003cp\u003eYes. The Performance-catted front connections are part of 3410H421.\u003c\/p\u003e\u003ch3\u003eDo you recommend tuning with these headers?\u003c\/h3\u003e\u003cp\u003eWe recommend tuning with every header installation. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eTalk to us\u003c\/a\u003e about calibration for your vehicle, exhaust and other modifications.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003eCompetition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"1-7\/8\" \/ Performance Cats","offer_id":55646908252502,"sku":"3410H421","price":3518.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/3b1499841e147f42e6db9ad2b7342d6b_9f8a3786-8774-4c8f-b7a8-b79bf701e40f.jpg?v=1791452502"},{"product_id":"kooks-2009-2015-cadillac-cts-v-header-conn-kits","title":"Kooks Cadillac CTS-V LSA Header and X-Pipe Kits (2009-2015)","description":"\u003ch2\u003eGive your supercharged CTS-V more to work with\u003c\/h2\u003e\u003cp\u003eThe supercharged LSA makes your CTS-V special, and the front exhaust is a worthwhile part of a serious upgrade. These Kooks kits pair 1-7\/8\" long tube headers with an X-pipe that joins the factory rear exhaust. Choose GREEN cats or Competition Only pipes while keeping the rear system you already like.\u003c\/p\u003e\u003cp\u003eSKUs: 2311H410, 2311H430\u003c\/p\u003e\u003ch2\u003eHeaders and crossover supplied together\u003c\/h2\u003e\u003cp\u003eBoth choices use 1-7\/8\" primaries, 3\" collectors and a stainless steel X-pipe. The rear outlet reduces to the 2-1\/2\" OEM interface. Buying the pair as a kit gives you matching headers and front connections for the LSA conversion.\u003c\/p\u003e\u003ch2\u003eFitting to the retained rear exhaust\u003c\/h2\u003e\u003cp\u003eThe stock exhaust must be cut for installation, then the 2-1\/2\" outlets join the retained rear system. We recommend professional fitting so the cut, alignment and clearances are handled together.\u003c\/p\u003e\u003ch2\u003eChoose your configuration\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"variant-comparison\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eConfiguration\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSupplied arrangement\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ engine conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2311H410\u003c\/td\u003e\n\u003ctd\u003eCat Type: Competition Only\u003c\/td\u003e\n\u003ctd\u003eHeaders; Competition Only front connections\u003c\/td\u003e\n\u003ctd\u003eFactory exhaust cut required; Uncatted; competition use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2311H430\u003c\/td\u003e\n\u003ctd\u003eCat Type: GREEN Cats\u003c\/td\u003e\n\u003ctd\u003eHeaders; GREEN Cats front connections\u003c\/td\u003e\n\u003ctd\u003eFactory exhaust cut required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e2009-2015\u003c\/td\u003e\n\u003ctd\u003eCadillac CTS V\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2311H410, 2311H430\u003c\/td\u003e\n\u003ctd\u003eFactory exhaust cut required\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKUs\u003c\/td\u003e\n\u003ctd\u003e2311H410, 2311H430\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2009-2015 CTS-V, supercharged 6.2L LSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eX-pipe\u003c\/td\u003e\n\u003ctd\u003e3\" inlet to 2-1\/2\" OEM rear outlet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChoices\u003c\/td\u003e\n\u003ctd\u003e2311H410 Competition Only; 2311H430 GREEN catted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eFactory exhaust must be cut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eCan I keep the factory rear exhaust?\u003c\/h3\u003e\u003cp\u003eYes. The X-pipe connects to its 2-1\/2\" interface after the required factory exhaust cut.\u003c\/p\u003e\u003ch3\u003eAre these for the later LT4 CTS-V?\u003c\/h3\u003e\u003cp\u003eThese kits are for the 2009-2015 LSA car. The 2016-2019 LT4 CTS-V has a separate header-and-connection kit.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003e2311H410: Competition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003cp\u003eThe competition-use waiver applies to 2311H410.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"Competition Only","offer_id":55646908809558,"sku":"2311H410","price":3942.21,"currency_code":"GBP","in_stock":true},{"title":"GREEN Cats","offer_id":55646908842326,"sku":"2311H430","price":4794.19,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/f7d6193a0bb643867033e2c21830dd51_b970710b-fe32-46ae-bb8d-2e821959b72b.jpg?v=1791452503"},{"product_id":"kooks-2016-2019-cadillac-cts-v-header-conn-kits","title":"Kooks Cadillac CTS-V LT4 Header Kits (2016-2019)","description":"\u003ch2\u003eGive your supercharged CTS-V the exhaust upgrade you want\u003c\/h2\u003e\u003cp\u003eChoose a matched Kooks front system for your LT4-powered CTS-V. These kits offer 1-7\/8\" or 2\" long tube headers with Competition Only or GREEN connections, joining the 2-3\/4\" OEM rear interface after the specified factory exhaust cut.\u003c\/p\u003e\u003cp\u003eSKUs: 2312H410, 2312H430, 2312H610, 2312H630\u003c\/p\u003e\u003ch2\u003eChoose the package around your LT4 build\u003c\/h2\u003e\u003cp\u003eBoth primary sizes feed 3\" collectors. GREEN supplies the catted choices suitable for the supercharged engine; Competition Only is the uncatted arrangement for competition use. The actual four combinations are shown with their SKUs below.\u003c\/p\u003e\u003ch2\u003eRetain a compatible rear system\u003c\/h2\u003e\u003cp\u003eThe front connections are supplied with the headers and transition to 2-3\/4\" OEM outlets. Installation requires cutting the stock exhaust, so have that work planned alongside fitting and tuning rather than expecting a completely untouched rear installation.\u003c\/p\u003e\u003ch2\u003eChoose your configuration\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"variant-comparison\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eConfiguration\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSupplied arrangement\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ engine conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2312H410\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Cat Type: Comp. Only\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; Competition Only front connections\u003c\/td\u003e\n\u003ctd\u003eFactory exhaust cut required; Uncatted; competition use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2312H430\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Cat Type: GREEN Cats\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; GREEN Cats front connections\u003c\/td\u003e\n\u003ctd\u003eFactory exhaust cut required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2312H610\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 2\"; Cat Type: Comp. Only\u003c\/td\u003e\n\u003ctd\u003e2\" headers; Competition Only front connections\u003c\/td\u003e\n\u003ctd\u003eFactory exhaust cut required; Uncatted; competition use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2312H630\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 2\"; Cat Type: GREEN Cats\u003c\/td\u003e\n\u003ctd\u003e2\" headers; GREEN Cats front connections\u003c\/td\u003e\n\u003ctd\u003eFactory exhaust cut required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e2016-2019\u003c\/td\u003e\n\u003ctd\u003eCadillac CTS V\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2312H410, 2312H430, 2312H610, 2312H630\u003c\/td\u003e\n\u003ctd\u003eFactory exhaust cut required\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKUs\u003c\/td\u003e\n\u003ctd\u003e2312H410, 2312H430, 2312H610, 2312H630\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2016-2019 CTS-V 6.2L supercharged LT4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeader choices\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" or 2\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnections\u003c\/td\u003e\n\u003ctd\u003eCompetition Only or GREEN catted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003e2-3\/4\" OEM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eStock exhaust must be cut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eHeaders and the selected front connection pipes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eDo all four kits require cutting the factory exhaust?\u003c\/h3\u003e\u003cp\u003eYes. That installation requirement applies to each package.\u003c\/p\u003e\u003ch3\u003eWhich choices have cats?\u003c\/h3\u003e\u003cp\u003e2312H430 and 2312H630 use GREEN cats with 1-7\/8\" and 2\" headers respectively.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003e2312H410, 2312H610: Competition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003cp\u003eThe competition-use waiver applies to 2312H410, 2312H610.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"1-7\/8\" \/ Comp. Only","offer_id":55646909595990,"sku":"2312H410","price":2059.61,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\" \/ GREEN Cats","offer_id":55646909628758,"sku":"2312H430","price":2911.59,"currency_code":"GBP","in_stock":true},{"title":"2\" \/ Comp. Only","offer_id":55646909661526,"sku":"2312H610","price":2207.9,"currency_code":"GBP","in_stock":true},{"title":"2\" \/ GREEN Cats","offer_id":55646909694294,"sku":"2312H630","price":3059.88,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/688a7dc128b6792d8c023b59a928a9e5_504e268e-7d74-49e7-ae05-46952e3a14f3.jpg?v=1791452506"},{"product_id":"kooks-2022-2026-cadillac-ct5-v-blackwing-header-exhaust-kits","title":"Kooks Cadillac CT5-V Blackwing Header and Exhaust Kits (2022-2026)","description":"\u003ch2\u003eUpgrade your Blackwing and keep its factory valved mufflers\u003c\/h2\u003e\u003cp\u003eEnjoy your Blackwing with a matched Kooks front exhaust upgrade that retains the factory valved rear mufflers. These packages combine long tube headers, front connections and a 3\" X-pipe, joining the original exhaust near the rear axle. Choose 1-7\/8\" or 2\" headers with GREEN cats or Competition Only pipes.\u003c\/p\u003e\u003cp\u003eSKUs: 2313F412, 2313F432, 2313F612, 2313F632\u003c\/p\u003e\u003ch2\u003eA larger part of the exhaust is included\u003c\/h2\u003e\u003cp\u003eThese are header-and-exhaust packages, not just headers and short connection pipes. The kit continues through the 3\" X-pipe to the OEM exhaust near the rear axle, keeping your factory valved mufflers. The mandrel-bent tubing is 304 stainless steel throughout the supplied exhaust.\u003c\/p\u003e\u003cp\u003eThe GREEN catalysts in 2313F632 are rated for up to 750 WHP.\u003c\/p\u003e\u003ch2\u003eFactory exhaust cutting, with no welding required\u003c\/h2\u003e\u003cp\u003eInstallation requires the factory exhaust to be cut. The kit clamps to the original rear section, keeping your factory valved mufflers in place. Gaskets, hardware and clamps are included, so your installer has the fitting parts for this conversion.\u003c\/p\u003e\u003ch2\u003eChoose your configuration\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"variant-comparison\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eConfiguration\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSupplied arrangement\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ engine conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2313F412\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Cat Type: Competition Only\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; Competition Only front connections and 3\" X-pipe to OEM exhaust near rear axle\u003c\/td\u003e\n\u003ctd\u003eFactory exhaust cut required; Uncatted; competition use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2313F432\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Cat Type: GREEN Cats\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; GREEN Cats front connections and 3\" X-pipe to OEM exhaust near rear axle\u003c\/td\u003e\n\u003ctd\u003eFactory exhaust cut required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2313F612\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 2\"; Cat Type: Competition Only\u003c\/td\u003e\n\u003ctd\u003e2\" headers; Competition Only front connections and 3\" X-pipe to OEM exhaust near rear axle\u003c\/td\u003e\n\u003ctd\u003eFactory exhaust cut required; Uncatted; competition use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2313F632\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 2\"; Cat Type: GREEN Cats\u003c\/td\u003e\n\u003ctd\u003e2\" headers; GREEN Cats front connections and 3\" X-pipe to OEM exhaust near rear axle; GREEN catalysts rated up to 750 WHP\u003c\/td\u003e\n\u003ctd\u003eFactory exhaust cut required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e2022-2026\u003c\/td\u003e\n\u003ctd\u003eCadillac CT5 V Blackwing\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2313F412, 2313F432, 2313F612, 2313F632\u003c\/td\u003e\n\u003ctd\u003eFactory exhaust cut required\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKUs\u003c\/td\u003e\n\u003ctd\u003e2313F412, 2313F432, 2313F612, 2313F632\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2022-2026 CT5-V Blackwing 6.2L supercharged V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel; mandrel-bent tubing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeader choices\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" or 2\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupplied exhaust\u003c\/td\u003e\n\u003ctd\u003eSelected front connections and 3\" X-pipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear interface\u003c\/td\u003e\n\u003ctd\u003eOEM exhaust near rear axle; factory valved mufflers retained\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eGaskets, hardware and clamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eFactory exhaust must be cut; no welding required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2313F632 catalyst rating\u003c\/td\u003e\n\u003ctd\u003eUp to 750 WHP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eAre new rear mufflers included?\u003c\/h3\u003e\u003cp\u003eThe package joins the original exhaust near the rear axle and retains your factory valved mufflers.\u003c\/p\u003e\u003ch3\u003eDoes fitting require welding?\u003c\/h3\u003e\u003cp\u003eNo welding is required for the specified installation, but the factory exhaust does need to be cut.\u003c\/p\u003e\u003ch3\u003eWhat changes between the four kits?\u003c\/h3\u003e\u003cp\u003eChoose 1-7\/8\" or 2\" headers, each with GREEN catted or Competition Only connections.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003e2313F412, 2313F612: Competition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003cp\u003eThe competition-use waiver applies to 2313F412, 2313F612.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"1-7\/8\" \/ Competition Only","offer_id":55646910841174,"sku":"2313F412","price":3166.34,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\" \/ GREEN Cats","offer_id":55646910873942,"sku":"2313F432","price":4018.32,"currency_code":"GBP","in_stock":true},{"title":"2\" \/ Competition Only","offer_id":55646910906710,"sku":"2313F612","price":3204.66,"currency_code":"GBP","in_stock":true},{"title":"2\" \/ GREEN Cats","offer_id":55646910939478,"sku":"2313F632","price":4056.64,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/d7e38ba648a1e7f990af04b17f128fd8_601bd48d-1f41-4a97-bbbd-2c8746f5173f.jpg?v=1791452509"},{"product_id":"kooks-2015-2026-ford-mustang-gt-5-0l-header-conn-kits-292187a7","title":"Kooks Header and Connection Kits for Mustang GT \/ Dark Horse 5.0 (2015-2026)","description":"\u003ch2\u003eA complete header upgrade for your Mustang\u003c\/h2\u003e\u003cp\u003eEnjoy the character of your Coyote with a header package that includes the connections to finish the job. These Kooks kits combine long tube headers, front connection pipes and OEM adapters for the 2015-2026 Mustang GT and the 2024-2026 Dark Horse 5.0. Choose from the actual primary and catalyst combinations below, whether your plans centre on a naturally aspirated car or a more powerful forced-induction build.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSKUs:\u003c\/strong\u003e 1151H222, 1151H232, 1151H442, 1151H452, 1151H632, 1151H642, 1151H6SS\u003c\/p\u003e\u003ch2\u003eChoose the kit around your engine\u003c\/h2\u003e\u003cp\u003eThe primary size and catalyst type are separate decisions. Primary diameter should suit the engine output and rev range; the catalyst needs to suit the engine power and whether it uses a supercharger or turbo. Performance Cats are for naturally aspirated engines. GREEN, H.O. GREEN and ULTRA-GREEN options support forced-induction applications within their respective ratings.\u003c\/p\u003e\u003ch2\u003eWhat changes between the GREEN versions\u003c\/h2\u003e\u003cp\u003eGREEN uses a 400 CPSI substrate in a 4\" catalyst body. H.O. GREEN uses a 300 CPSI substrate in a larger 4-1\/2\" body for higher-output applications. ULTRA-GREEN uses a 400 CPSI substrate in a 4-1\/2\" body with additional precious-metal content. CPSI means cells per square inch: it describes the catalyst substrate, rather than a horsepower gain.\u003c\/p\u003e\u003ch2\u003eHeaders, connections and fitting parts together\u003c\/h2\u003e\u003cp\u003eThe 304 stainless headers have mandrel-bent primaries, 3\/8\" laser-cut flanges and 3\" collectors with a scavenging spike. The kits include the front connections, OEM adapters, gaskets, O2 extensions, clamps and bolts for the OEM-exhaust connection. The ULTRA-GREEN kit also includes O2 spacers.\u003c\/p\u003e\u003ch2\u003eTwo pipe sets with Street\/Strip\u003c\/h2\u003e\u003cp\u003eThe Street\/Strip package includes H.O. GREEN catted front pipes and a separate set of competition-only front pipes. You can fit the catted set and retain the other pipes for a dedicated track installation. The competition pipes are not for public-road use, and this package requires a Kooks competition-use waiver.\u003c\/p\u003e\u003ch2\u003eFitting and calibration\u003c\/h2\u003e\u003cp\u003eWe recommend professional installation. Sensor leads, engine-bay clearance and the connection to your rear exhaust should be checked together, with fasteners checked after the first heat cycle.\u003c\/p\u003e\u003ch2\u003eTuning for your header upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend a tune with these headers, matched to your engine and the completed exhaust. For a 2015-2017 GT 5.0, see our \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/products\/ford-mustang-gt-5-0l-v8-2015-2017-custom-ecu-tuning\"\u003eMustang GT custom ECU tuning\u003c\/a\u003e. For 2024+ cars, we have \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/products\/ford-mustang-gt-s650-5-0l-v8-ecu-remap-2024-stage-1-custom-tuning\"\u003eGT S650 tuning\u003c\/a\u003e and \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/products\/ford-mustang-dark-horse-s650-5-0l-v8-ecu-tuning-2024-custom-mustang-dark-horse-remap\"\u003eDark Horse tuning\u003c\/a\u003e listings. The S650 listings cover Stage 1 tuning; \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003econtact us\u003c\/a\u003e to discuss calibration for your header conversion before booking. For a 2018-2023 GT, Bullitt or Mach 1, \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eget in touch\u003c\/a\u003e to discuss tuning for your car.\u003c\/p\u003e\u003ch2\u003eChoose your option\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eHeader Size\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eCat Type\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ contents\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eStated use restriction\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1151H222\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\"\u003c\/td\u003e\n\u003ctd\u003ePerformance Cats\u003c\/td\u003e\n\u003ctd\u003eOEM adapters; naturally aspirated application only.\u003c\/td\u003e\n\u003ctd\u003eCompetition, off-road and track use only. Not for use on public roads.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1151H232\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\"\u003c\/td\u003e\n\u003ctd\u003eGREEN Cats\u003c\/td\u003e\n\u003ctd\u003eOEM adapters; GREEN catalysts support naturally aspirated or forced-induction applications.\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1151H442\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\"\u003c\/td\u003e\n\u003ctd\u003eH.O. GREEN Cats\u003c\/td\u003e\n\u003ctd\u003eOEM adapters; larger-body H.O. GREEN catalysts.\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1151H452\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\"\u003c\/td\u003e\n\u003ctd\u003eULTRA GREEN Cats\u003c\/td\u003e\n\u003ctd\u003eOEM adapters and O2 spacers; larger-body ULTRA-GREEN catalysts.\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1151H632\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003ctd\u003eGREEN Cats\u003c\/td\u003e\n\u003ctd\u003eOEM adapters; GREEN catalysts.\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1151H642\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003ctd\u003eH.O. GREEN Cats\u003c\/td\u003e\n\u003ctd\u003eOEM adapters; larger-body H.O. GREEN catalysts.\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1151H6SS\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003ctd\u003eStreet\/Strip\u003c\/td\u003e\n\u003ctd\u003eIncludes BOTH H.O. GREEN catted front pipes and a separate competition-only front-pipe set, plus OEM adapters.\u003c\/td\u003e\n\u003ctd\u003eCompetition, off-road and track use only. Not for use on public roads. Kooks competition-use waiver required.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle and trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU \/ fitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2026\u003c\/td\u003e\n\u003ctd\u003eFord Mustang GT\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1151H222, 1151H232, 1151H442, 1151H452, 1151H632, 1151H642, 1151H6SS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2026\u003c\/td\u003e\n\u003ctd\u003eFord Mustang GT Premium\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1151H222, 1151H232, 1151H442, 1151H452, 1151H632, 1151H642, 1151H6SS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eFord Mustang GT 50 Years Limited Edition\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1151H222, 1151H232, 1151H442, 1151H452, 1151H632, 1151H642, 1151H6SS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2020\u003c\/td\u003e\n\u003ctd\u003eFord Mustang Bullitt\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1151H222, 1151H232, 1151H442, 1151H452, 1151H632, 1151H642, 1151H6SS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eFord Mustang Mach 1\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1151H222, 1151H232, 1151H442, 1151H452, 1151H632, 1151H642, 1151H6SS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2024-2026\u003c\/td\u003e\n\u003ctd\u003eFord Mustang Dark Horse\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1151H222, 1151H232, 1151H442, 1151H452, 1151H632, 1151H642, 1151H6SS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2024-2026\u003c\/td\u003e\n\u003ctd\u003eFord Mustang Dark Horse Premium\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1151H222, 1151H232, 1151H442, 1151H452, 1151H632, 1151H642, 1151H6SS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eMustang GT 5.0, 2015-2026; Dark Horse 5.0, 2024-2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel; mandrel-bent primaries; 3\/8\" laser-cut flanges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollector design\u003c\/td\u003e\n\u003ctd\u003e3\" collectors with scavenging spike\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupplied exhaust parts\u003c\/td\u003e\n\u003ctd\u003eLong tube header pair, front connection pipes and OEM adapters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupplied fitting parts\u003c\/td\u003e\n\u003ctd\u003eGaskets, O2 extensions, clamps and bolts; O2 spacers also included with ULTRA-GREEN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalyst design choices\u003c\/td\u003e\n\u003ctd\u003ePerformance Cats; GREEN; H.O. GREEN; ULTRA-GREEN; Street\/Strip with H.O. GREEN pipes plus a separate competition pipe set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCalibration\u003c\/td\u003e\n\u003ctd\u003eHoonies recommends a tune matched to the completed header and exhaust installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eFAQs\u003c\/h2\u003e\u003ch3\u003eDoes this include the headers and adapters?\u003c\/h3\u003e\u003cp\u003eYes. These are header and front-connection packages with OEM adapters and the listed fitting parts, ready to join the compatible OEM rear exhaust.\u003c\/p\u003e\u003ch3\u003eWhat does Street\/Strip actually supply?\u003c\/h3\u003e\u003cp\u003eIt supplies the headers and OEM adapters with two front-pipe sets: H.O. GREEN catted pipes and separate competition-only pipes. The track pipes are not for public-road use.\u003c\/p\u003e\u003ch3\u003eCan I use Performance Cats with a supercharger?\u003c\/h3\u003e\u003cp\u003eNo. Performance Cats are for naturally aspirated applications. Choose an appropriate GREEN-family catalyst for forced induction and match its capacity to the build.\u003c\/p\u003e\u003ch3\u003eWill a catted kit guarantee no check-engine light?\u003c\/h3\u003e\u003cp\u003eNo catalyst choice guarantees the warning light will stay off. Match the hardware and calibration to the completed engine and exhaust.\u003c\/p\u003e\u003ch3\u003eIs every size available with every catalyst?\u003c\/h3\u003e\u003cp\u003eThe table shows the combinations we actually offer. Choose a listed SKU rather than assuming every primary and catalyst can be combined.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"1-3\/4\" \/ Performance Cats","offer_id":55646910972246,"sku":"1151H222","price":2787.18,"currency_code":"GBP","in_stock":true},{"title":"1-3\/4\" \/ GREEN Cats","offer_id":55646911005014,"sku":"1151H232","price":3355.17,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\" \/ H.O. GREEN Cats","offer_id":55646911037782,"sku":"1151H442","price":3902.41,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\" \/ ULTRA GREEN Cats","offer_id":55646911070550,"sku":"1151H452","price":4801.72,"currency_code":"GBP","in_stock":true},{"title":"2\" \/ GREEN Cats","offer_id":55646911103318,"sku":"1151H632","price":3494.83,"currency_code":"GBP","in_stock":true},{"title":"2\" \/ H.O. GREEN Cats","offer_id":55646911136086,"sku":"1151H642","price":4015.49,"currency_code":"GBP","in_stock":true},{"title":"2\" \/ Street\/Strip","offer_id":55646911168854,"sku":"1151H6SS","price":4242.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/b3a18e1a4cdcfb765f82e1488d67ccff_43bea1ee-1662-4ced-87fd-6b0f0280be6c.jpg?v=1791452509"},{"product_id":"kooks-2015-2026-ford-mustang-gt-5-0l-header-conn-kits-95d36c35","title":"Kooks Mustang 5.0 Header and OEM Connection Kits (2015-2026)","description":"\u003ch2\u003eGive your Mustang a front exhaust upgrade to match your plans\u003c\/h2\u003e\u003cp\u003eChoose a Kooks long tube header kit with Performance or GREEN catted connections for the supported 5.0-litre Mustang applications. Both packages include OEM adapters and fitting parts, letting you keep a compatible rear exhaust while upgrading the front system.\u003c\/p\u003e\u003cp\u003eSKUs: 1151H422, 1151H432\u003c\/p\u003e\u003ch2\u003eChoose the catalyst for your Coyote\u003c\/h2\u003e\u003cp\u003ePerformance cats are for naturally aspirated engines. GREEN supports forced induction and is paired here with 1-7\/8\" primaries. Both kits use 3\" collectors, 3\/8\" laser-cut flanges and a dual bolt-pattern header flange.\u003c\/p\u003e\u003cp\u003eThe GREEN catalysts in 1151H432 are rated for up to 750 RWHP.\u003c\/p\u003e\u003ch2\u003eFitting parts are part of the package\u003c\/h2\u003e\u003cp\u003eGaskets, the oxygen-sensor extension harness, clamps and bolt kit are included, along with OEM adapters. That brings the principal header conversion components together in one purchase. GT, Bullitt, Mach 1 and Dark Horse years remain separate in the fitment table.\u003c\/p\u003e\u003ch2\u003eChoose your configuration\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"variant-comparison\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eConfiguration\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSupplied arrangement\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ engine conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1151H422\u003c\/td\u003e\n\u003ctd\u003eCat Type: Performance Cats\u003c\/td\u003e\n\u003ctd\u003eHeaders; Performance Cats front connections; OEM adapters, gaskets, O2 extension harness, clamps and bolt kit included\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1151H432\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Cat Type: GREEN Cats\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; GREEN Cats front connections; OEM adapters, gaskets, O2 extension harness, clamps and bolt kit included; GREEN catalysts rated up to 750 RWHP\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with the header installation. The \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/products\/ford-mustang-gt-5-0l-v8-2015-2017-custom-ecu-tuning\"\u003e2015-2017 Mustang GT custom tuning\u003c\/a\u003e listing covers those GT years. For later GT cars, Bullitt, Mach 1 or Dark Horse, \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003econtact us\u003c\/a\u003e about calibration for the complete header setup.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2026\u003c\/td\u003e\n\u003ctd\u003eFord Mustang GT\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1151H422, 1151H432\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2026\u003c\/td\u003e\n\u003ctd\u003eFord Mustang GT Premium\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1151H422, 1151H432\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2020\u003c\/td\u003e\n\u003ctd\u003eFord Mustang Bullitt\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1151H422, 1151H432\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eFord Mustang Mach 1\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1151H422, 1151H432\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2024-2026\u003c\/td\u003e\n\u003ctd\u003eFord Mustang Dark Horse\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1151H422, 1151H432\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2024-2026\u003c\/td\u003e\n\u003ctd\u003eFord Mustang Dark Horse Premium\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1151H422, 1151H432\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKUs\u003c\/td\u003e\n\u003ctd\u003e1151H422, 1151H432\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplications\u003c\/td\u003e\n\u003ctd\u003eListed Mustang 5.0 GT \/ GT Premium \/ Bullitt \/ Mach 1 \/ Dark Horse trims and years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollectors\u003c\/td\u003e\n\u003ctd\u003e3\" with Kooks scavenging spike\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlanges\u003c\/td\u003e\n\u003ctd\u003e3\/8\" laser-cut; dual bolt-pattern header flange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGREEN primary tubing\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" on 1151H432\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalysts\u003c\/td\u003e\n\u003ctd\u003ePerformance or GREEN; both exact pages specify 400-cell cats\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eHeaders, selected connections, OEM adapters, gaskets, O2 extension harness, clamps and bolt kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePerformance condition\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1151H432 catalyst rating\u003c\/td\u003e\n\u003ctd\u003eUp to 750 RWHP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWhich kit should I choose for a supercharger?\u003c\/h3\u003e\u003cp\u003eChoose the GREEN-catted 1151H432 from these two packages.\u003c\/p\u003e\u003ch3\u003eDo I need to buy OEM adapters separately?\u003c\/h3\u003e\u003cp\u003eNo. OEM adapters are included with both kits.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003e1151H422: Competition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"1-7\/8\" \/ Performance Cats","offer_id":55646911562070,"sku":"1151H422","price":2813.77,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\" \/ GREEN Cats","offer_id":55646911594838,"sku":"1151H432","price":3381.76,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/b3a18e1a4cdcfb765f82e1488d67ccff_8ef9c032-b699-4f7e-b6bd-b052c75e4fc1.jpg?v=1791452510"},{"product_id":"kooks-2019-2024-ram-1500-new-body-style-5-7l-header-conn-kits","title":"Kooks RAM 1500 DT 5.7 HEMI Header and Y-Pipe Kits (2019-2024)","description":"\u003ch2\u003eGet more enjoyment from your HEMI truck\u003c\/h2\u003e\u003cp\u003eUpgrade your RAM's front exhaust with 1-7\/8-inch Kooks long tube headers and a matching Y-pipe. Choose Competition Only, Performance or Ultra-GREEN connections for your 5.7 HEMI and intended use.\u003c\/p\u003e\u003cp\u003eSKUs: 3520H410, 3520H420, 3520H430\u003c\/p\u003e\u003ch2\u003eChoose the catalyst for your engine\u003c\/h2\u003e\u003cp\u003ePerformance cats are for naturally aspirated builds; Ultra-GREEN is the catted choice here that supports forced induction. The Competition Only kit supplies an uncatted Y-pipe for competition use. All three kits use 1-7\/8\" primary tubing and 3\" collectors, so the catalyst selection is the main difference on this page.\u003c\/p\u003e\u003ch2\u003eChoose for your DT cab and bed\u003c\/h2\u003e\u003cp\u003eThese kits are for the new-body RAM 1500 DT. The Competition Only 3520H410 joins the OEM two-bolt rear flange and fits the Crew Cab short bed with a 144.6\" wheelbase. Use that cab, bed and wheelbase combination when choosing this uncatted package.\u003c\/p\u003e\u003ch2\u003eChoose your configuration\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"variant-comparison\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eConfiguration\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSupplied arrangement\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ engine conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e3520H410\u003c\/td\u003e\n\u003ctd\u003eCat Type: Comp. Only\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers, 3\" collectors and uncatted Y-pipe; Crew Cab short bed, 144.6\" wheelbase only; OEM two-bolt rear flange.\u003c\/td\u003e\n\u003ctd\u003eCrew Cab short bed, 144.6\" wheelbase; Uncatted; competition use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3520H420\u003c\/td\u003e\n\u003ctd\u003eCat Type: Performance Cats\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers with catted Y-pipe to OEM exhaust; naturally aspirated only.\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3520H430\u003c\/td\u003e\n\u003ctd\u003eCat Type: ULTRA GREEN Cats (Ultra-GREEN supplied)\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers with Ultra-GREEN Y-pipe to OEM exhaust; suitable for forced induction.\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eRam 1500 Sport\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3520H410\u003c\/td\u003e\n\u003ctd\u003eCrew Cab short bed, 144.6\" wheelbase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eRam 1500 Sport\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3520H420, 3520H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eRam 1500 Big Horn\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3520H410\u003c\/td\u003e\n\u003ctd\u003eCrew Cab short bed, 144.6\" wheelbase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eRam 1500 Big Horn\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3520H420, 3520H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eRam 1500 Laramie\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3520H410\u003c\/td\u003e\n\u003ctd\u003eCrew Cab short bed, 144.6\" wheelbase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eRam 1500 Laramie\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3520H420, 3520H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eRam 1500 Lone Star\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3520H410\u003c\/td\u003e\n\u003ctd\u003eCrew Cab short bed, 144.6\" wheelbase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eRam 1500 Lone Star\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3520H420, 3520H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eRam 1500 Limited\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3520H410\u003c\/td\u003e\n\u003ctd\u003eCrew Cab short bed, 144.6\" wheelbase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eRam 1500 Limited\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3520H420, 3520H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eRam 1500 Rebel\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3520H410\u003c\/td\u003e\n\u003ctd\u003eCrew Cab short bed, 144.6\" wheelbase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eRam 1500 Rebel\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3520H420, 3520H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eRam 1500 Tradesman\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3520H410\u003c\/td\u003e\n\u003ctd\u003eCrew Cab short bed, 144.6\" wheelbase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eRam 1500 Tradesman\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3520H420, 3520H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2021\u003c\/td\u003e\n\u003ctd\u003eRam 1500 Laramie Longhorn\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3520H410\u003c\/td\u003e\n\u003ctd\u003eCrew Cab short bed, 144.6\" wheelbase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2021\u003c\/td\u003e\n\u003ctd\u003eRam 1500 Laramie Longhorn\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3520H420, 3520H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019\u003c\/td\u003e\n\u003ctd\u003eRam 1500 SXT\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3520H410\u003c\/td\u003e\n\u003ctd\u003eCrew Cab short bed, 144.6\" wheelbase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019\u003c\/td\u003e\n\u003ctd\u003eRam 1500 SXT\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3520H420, 3520H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKUs\u003c\/td\u003e\n\u003ctd\u003e3520H410, 3520H420, 3520H430\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2019-2024 new-body-style RAM 1500 DT, 5.7L HEMI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFront pipework\u003c\/td\u003e\n\u003ctd\u003e3\" Y-pipe to OEM rear exhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChoices\u003c\/td\u003e\n\u003ctd\u003e3520H410 Competition Only; 3520H420 Performance; 3520H430 Ultra-GREEN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3520H410 body\/wheelbase\u003c\/td\u003e\n\u003ctd\u003eCrew Cab short bed, 144.6\" wheelbase only; OEM two-bolt rear flange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePerformance catalyst use\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs this for a RAM Classic?\u003c\/h3\u003e\u003cp\u003eChoose this page for the new-body-style DT truck. A RAM Classic uses the previous body and needs its own matching exhaust parts.\u003c\/p\u003e\u003ch3\u003eAre the headers and Y-pipe supplied together?\u003c\/h3\u003e\u003cp\u003eYes. These are header-and-connection kits, with the Y-pipe choice shown against each SKU.\u003c\/p\u003e\u003ch3\u003eDoes the GREEN selection supply Ultra-GREEN cats?\u003c\/h3\u003e\u003cp\u003eYes. SKU 3520H430 supplies an Ultra-GREEN Y-pipe with the 1-7\/8\" headers. That is the catalyst supplied for the GREEN selection on this page.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003e3520H410, 3520H420: Competition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003cp\u003eThe competition-use waiver applies to 3520H410.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"Comp. Only","offer_id":55646911660374,"sku":"3520H410","price":4331.29,"currency_code":"GBP","in_stock":true},{"title":"Performance Cats","offer_id":55646911693142,"sku":"3520H420","price":4615.28,"currency_code":"GBP","in_stock":true},{"title":"ULTRA GREEN Cats","offer_id":55646911725910,"sku":"3520H430","price":5183.27,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/d93d56e614509adc09cce58508a31fb7_226835fa-aa4e-4d75-99d6-8974d8e46d61.jpg?v=1791452512"},{"product_id":"kooks-2411h420","title":"Kooks Pontiac GTO LS1 Header Kit (2004) | 2411H420","description":"\u003ch2\u003eGive your LS1 GTO a matched Kooks exhaust upgrade\u003c\/h2\u003e\u003cp\u003ePair your 2004 GTO with 1-7\/8\" Kooks long tube headers and Performance-catted front connections. This stainless kit is specified for the 5.7-litre LS1 and joins its 2-1\/2\" OEM rear exhaust interface.\u003c\/p\u003e\u003cp\u003eSKU: 2411H420\u003c\/p\u003e\u003ch2\u003eThe right package for the 2004 car\u003c\/h2\u003e\u003cp\u003eThe 3\" collectors feed matching front pipes with 2-1\/2\" OEM rear outlets. The later 6.0-litre GTO uses a different kit with 3\" rear outlets, so engine and model year matter as much as the header size.\u003c\/p\u003e\u003ch2\u003eA naturally aspirated front conversion\u003c\/h2\u003e\u003cp\u003eHeaders and the Performance-catted connections are supplied together. A compatible rear exhaust can remain in place. The cats suit naturally aspirated engines; choose an appropriate forced-induction catalyst arrangement for a boosted LS1.\u003c\/p\u003e\u003ch2\u003eFitting your exhaust\u003c\/h2\u003e\u003cp\u003eInstallation requires removal of the original driver-side heat shield. The passenger-side shield does not need to be removed.\u003c\/p\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e2004\u003c\/td\u003e\n\u003ctd\u003ePontiac GTO Base\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e2411H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e2411H420\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2004 Pontiac GTO LS1 5.7L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnections\u003c\/td\u003e\n\u003ctd\u003ePerformance-catted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003e2-1\/2\" OEM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalyst condition\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitting change\u003c\/td\u003e\n\u003ctd\u003eOriginal driver-side heat shield removed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs this the kit for a 2005 GTO?\u003c\/h3\u003e\u003cp\u003eChoose the separate LS2 2005-2006 kit for that car.\u003c\/p\u003e\u003ch3\u003eAre front connection pipes included?\u003c\/h3\u003e\u003cp\u003eYes. The Performance-catted connections are supplied with the headers.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003eCompetition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":55646911955286,"sku":"2411H420","price":2812.29,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/e438ffb42ad74d08c6ccea72b48048e4_ff2da541-8278-4b9b-9dc5-784eb277eb4a.jpg?v=1791452511"},{"product_id":"kooks-2021-ram-1500-trx-6-2l-header-conn-kits","title":"Kooks RAM TRX 6.2 HEMI Header and Connection Kits","description":"\u003ch2\u003eGive your TRX a front exhaust to match your ambitions\u003c\/h2\u003e\u003cp\u003eYour TRX already has a supercharged V8 worth enjoying. These Kooks kits upgrade its headers and front connections together, with a choice of 1-7\/8\" or 2\" primaries and H.O. GREEN catalytic connections. The rear pipes use the OEM two-bolt flanges, so the factory cat-back can stay.\u003c\/p\u003e\u003cp\u003eSKUs: 3521H410, 3521H440, 3521H640\u003c\/p\u003e\u003ch2\u003eChoose the header and catalyst combination\u003c\/h2\u003e\u003cp\u003eThe 1-7\/8\" kit is available with Competition Only pipes or H.O. GREEN cats. The 2\" kit uses H.O. GREEN cats. The catted versions have 4-1\/2\" catalyst bodies and a 300-cell substrate, giving you a high-output catalyst specification suited to the supercharged engine.\u003c\/p\u003e\u003ch2\u003eMatched parts and a familiar rear interface\u003c\/h2\u003e\u003cp\u003eMandrel-bent 304 stainless steel tubing, 3\/8\" header flanges and the supplied gaskets and hardware make this a substantial paired upgrade. The OEM two-bolt rear interface lets you retain the factory cat-back or a compatible replacement that uses the same connection.\u003c\/p\u003e\u003ch2\u003eChoose your configuration\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"variant-comparison\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eConfiguration\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSupplied arrangement\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ engine conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e3521H410\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Cat Type: Comp. Only\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; Competition Only front connections\u003c\/td\u003e\n\u003ctd\u003eUncatted; competition use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3521H440\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Cat Type: H.O. GREEN Cats\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; H.O. GREEN cats front connections\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3521H640\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 2\"; Cat Type: H.O. GREEN Cats\u003c\/td\u003e\n\u003ctd\u003e2\" headers; H.O. GREEN cats front connections\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eRam 1500 TRX\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3521H410, 3521H440, 3521H640\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKUs\u003c\/td\u003e\n\u003ctd\u003e3521H410, 3521H440, 3521H640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eRAM 1500 TRX 6.2L supercharged HEMI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel; mandrel-bent tubing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeader choices\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" or 2\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlanges\u003c\/td\u003e\n\u003ctd\u003e3\/8\" thick\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eH.O. GREEN cats\u003c\/td\u003e\n\u003ctd\u003e4-1\/2\" bodies; 300-cell substrate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear connection\u003c\/td\u003e\n\u003ctd\u003eOEM two-bolt flanges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eHeaders, selected front pipes, gaskets and installation hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eDo the kits include front connection pipes?\u003c\/h3\u003e\u003cp\u003eYes. Choose the Competition Only or H.O. GREEN configuration against the SKU.\u003c\/p\u003e\u003ch3\u003eWhich 2-inch kit is on this page?\u003c\/h3\u003e\u003cp\u003e3521H640 pairs 2\" headers with H.O. GREEN catted connections. The 1-7\/8\" H.O. GREEN kit is 3521H440.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003e3521H410: Competition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003cp\u003eThe competition-use waiver applies to 3521H410.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"1-7\/8\" \/ Comp. Only","offer_id":55646912348502,"sku":"3521H410","price":2798.8,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\" \/ H.O. GREEN Cats","offer_id":55646912381270,"sku":"3521H440","price":4171.43,"currency_code":"GBP","in_stock":true},{"title":"2\" \/ H.O. GREEN Cats","offer_id":55646912414038,"sku":"3521H640","price":4282.97,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/a6de2994656f2941277439554dd8efc6_44a6ecf9-d15d-4bcb-9cd7-b5bfc6cafd3d.jpg?v=1791452512"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/collections\/kooks-header-kits-abstract-no-logo-1536x864-20261008.webp?v=1791548808","url":"https:\/\/hooniesadrenaline.co.uk\/collections\/header-kits.oembed?page=2","provider":"Hoonies Adrenaline","version":"1.0","type":"link"}