{"product_id":"kooks-2011-2020-wk2-grand-cherokee-durango-header-conn-kits","title":"Kooks Grand Cherokee WK2 \/ Durango 5.7 HEMI Header Kits","description":"\u003ch2\u003eEnjoy more of your HEMI without replacing the rear exhaust\u003c\/h2\u003e\u003cp\u003eUpgrade the front exhaust on your 5.7 HEMI with Kooks long tube headers and a matching connection kit. Choose Performance or GREEN cats, with 1-7\/8\" primary tubing and an OEM rear exhaust connection. The packages cover the listed WK2 Grand Cherokee and Durango applications.\u003c\/p\u003e\u003cp\u003eSKUs: 3610H421, 3610H431\u003c\/p\u003e\u003ch2\u003eA matched front upgrade\u003c\/h2\u003e\u003cp\u003eBoth kits combine 1-7\/8\" headers, 3\" collectors and the stainless front pipes needed to join the OEM rear system. It is a useful route if you want to improve the exhaust from the engine back while keeping the rear system already fitted.\u003c\/p\u003e\u003ch2\u003eUse the right years for your vehicle\u003c\/h2\u003e\u003cp\u003eThe WK2 Grand Cherokee range ends at 2021, while the listed Durango applications extend through their separate trim ranges up to 2026. Performance cats are for naturally aspirated use. GREEN is the choice here for a forced-induction 5.7 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\u003e3610H421\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\u003e3610H431\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\u003e2011-2026\u003c\/td\u003e\n\u003ctd\u003eDodge Durango R\/T\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3610H421, 3610H431\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011-2024\u003c\/td\u003e\n\u003ctd\u003eDodge Durango Citadel\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3610H421, 3610H431\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011-2013\u003c\/td\u003e\n\u003ctd\u003eDodge Durango Crew\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3610H421, 3610H431\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\u003eDodge Durango Limited\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3610H421, 3610H431\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011-2021\u003c\/td\u003e\n\u003ctd\u003eJeep Grand Cherokee Overland\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3610H421, 3610H431\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011-2021\u003c\/td\u003e\n\u003ctd\u003eJeep Grand Cherokee Limited\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3610H421, 3610H431\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011-2013\u003c\/td\u003e\n\u003ctd\u003eJeep Grand Cherokee Laredo\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3610H421, 3610H431\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012\u003c\/td\u003e\n\u003ctd\u003eJeep Grand Cherokee Overland Summit\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3610H421, 3610H431\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014-2021\u003c\/td\u003e\n\u003ctd\u003eJeep Grand Cherokee Summit\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3610H421, 3610H431\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2021\u003c\/td\u003e\n\u003ctd\u003eJeep Grand Cherokee Trailhawk\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3610H421, 3610H431\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018-2021\u003c\/td\u003e\n\u003ctd\u003eJeep Grand Cherokee High Altitude\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e3610H421, 3610H431\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\u003e3610H421, 3610H431\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplications\u003c\/td\u003e\n\u003ctd\u003e2011-2021 WK2 Grand Cherokee; listed 2011-2026 Durango trims\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine\u003c\/td\u003e\n\u003ctd\u003e5.7L HEMI 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\u003eFront pipes\u003c\/td\u003e\n\u003ctd\u003ePerformance or GREEN catted; OEM rear connection\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 the newer Grand Cherokee WL fit?\u003c\/h3\u003e\u003cp\u003eThis kit uses the WK2 Grand Cherokee application. Match the generation as well as the 5.7 engine.\u003c\/p\u003e\u003ch3\u003eAre these for the 6.4 SRT?\u003c\/h3\u003e\u003cp\u003eThis page is the 5.7 HEMI kit. The 6.4 SRT uses a separate application.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003e3610H421: 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":55646914281814,"sku":"3610H421","price":3478.89,"currency_code":"GBP","in_stock":true},{"title":"GREEN Cats","offer_id":55646914314582,"sku":"3610H431","price":4046.88,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/d6aeb9e69b8ef046bceded71dd12b146_5a48c61b-d671-458b-adba-416abdcc79a3.jpg?v=1791452515","url":"https:\/\/hooniesadrenaline.co.uk\/products\/kooks-2011-2020-wk2-grand-cherokee-durango-header-conn-kits","provider":"Hoonies Adrenaline","version":"1.0","type":"link"}