{"products":[{"id":11354626228566,"title":"Kooks Mustang GT \/ Dark Horse RHD Header Kits (2024-2026)","handle":"kooks-2024-mustang-gt-dark-horse-5-0l-rhd-header-kit","body_html":"\u003ch2\u003eA complete exhaust upgrade for your RHD Mustang\u003c\/h2\u003e\u003cp\u003eBring out more of your Mustang's V8 character with a front exhaust package put together for right-hand-drive S650 cars. Our bundle combines Kooks 1-7\/8\" headers, your chosen 3\" connection pipes and both adapters for the factory rear exhaust. You can choose the catalyst arrangement around your build, with the main components already matched.\u003c\/p\u003e\u003cp\u003eSKUs: HA-KOOKS-S650-RHD-11513100, HA-KOOKS-S650-RHD-11513300, HA-KOOKS-S650-RHD-11513400\u003c\/p\u003e\u003ch2\u003eHeaders, connections and adapters together\u003c\/h2\u003e\u003cp\u003eEvery bundle includes 11552400 right-hand-drive headers, their gaskets, bolt kit and O2 extensions, plus the 11513000-2 adapter pair. The adapters take the 3\" front pipes to the 2-1\/4\" OEM rear interface. Clamps are purchased separately.\u003c\/p\u003e\u003ch2\u003eChoose the cats for your engine\u003c\/h2\u003e\u003cp\u003eGREEN connections use 400-cell cats suitable for forced induction. H.O. GREEN uses a 4-1\/2\" 300-cell substrate. Competition Only supplies uncatted pipes. The included headers carry a competition-use restriction, which applies to every bundle option, including the catted choices.\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\u003eHA-KOOKS-S650-RHD-11513100\u003c\/td\u003e\n\u003ctd\u003eConnection Pipes: Comp. Only\u003c\/td\u003e\n\u003ctd\u003e11552400 headers + 11513100 uncatted pipes + 11513000-2 adapter pair; clamps separate.\u003c\/td\u003e\n\u003ctd\u003eRight-hand drive only; 5.0L S650; clamps separate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHA-KOOKS-S650-RHD-11513300\u003c\/td\u003e\n\u003ctd\u003eConnection Pipes: GREEN Cats\u003c\/td\u003e\n\u003ctd\u003e11552400 headers + 11513300 400-cell GREEN pipes + 11513000-2 adapter pair; clamps separate.\u003c\/td\u003e\n\u003ctd\u003eRight-hand drive only; 5.0L S650; clamps separate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHA-KOOKS-S650-RHD-11513400\u003c\/td\u003e\n\u003ctd\u003eConnection Pipes: H.O. GREEN Cats\u003c\/td\u003e\n\u003ctd\u003e11552400 headers + 11513400 H.O. GREEN pipes, 4-1\/2\" 300-cell substrate + 11513000-2 adapter pair; clamps separate.\u003c\/td\u003e\n\u003ctd\u003eRight-hand drive only; 5.0L S650; clamps separate\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. We offer \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/products\/ford-mustang-gt-s650-5-0l-v8-ecu-remap-2024-stage-1-custom-tuning\"\u003eMustang GT Stage 1 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 Stage 1 tuning\u003c\/a\u003e for 2024+ S650s. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eTalk to us\u003c\/a\u003e about your header upgrade so we can arrange a calibration for the modified exhaust.\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\u003e2024-2026\u003c\/td\u003e\n\u003ctd\u003eFord Mustang GT \/ Dark Horse S650\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003eHA-KOOKS-S650-RHD-11513100, HA-KOOKS-S650-RHD-11513300, HA-KOOKS-S650-RHD-11513400\u003c\/td\u003e\n\u003ctd\u003eRight-hand drive only; 5.0L S650; clamps separate\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\u003eHA-KOOKS-S650-RHD-11513100, HA-KOOKS-S650-RHD-11513300, HA-KOOKS-S650-RHD-11513400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2024-2026 Mustang GT \/ Dark Horse 5.0L; right-hand drive only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\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\u003e11552400; 1-7\/8\" primaries, 3\" outlets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapters\u003c\/td\u003e\n\u003ctd\u003e11513000-2; one pair, 3\" inlet to 2-1\/4\" OEM outlet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeader fitting parts\u003c\/td\u003e\n\u003ctd\u003eGaskets, bolt kit and O2 extensions included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamps\u003c\/td\u003e\n\u003ctd\u003ePurchased separately\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. Both OEM adapters are included for a rear system using the compatible factory connection.\u003c\/p\u003e\u003ch3\u003eAre the components the same in every bundle?\u003c\/h3\u003e\u003cp\u003eThe headers and adapter pair are the same. Your selection changes the front connection pipes and catalyst arrangement.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003eHA-KOOKS-S650-RHD-11513100, HA-KOOKS-S650-RHD-11513300, HA-KOOKS-S650-RHD-11513400: Competition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003cp\u003eThe competition-use waiver applies to HA-KOOKS-S650-RHD-11513100, HA-KOOKS-S650-RHD-11513300, HA-KOOKS-S650-RHD-11513400.\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","published_at":"2026-10-10T08:18:40+01:00","created_at":"2026-10-09T18:01:30+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:ford-mustang","fits:ford-mustang-s650-dark-horse-2024-plus","fits:ford-mustang-s650-gt-2024-2026-right-hand-drive","make:ford","type:header-kit"],"variants":[{"id":55670837215574,"title":"Comp. Only","option1":"Comp. Only","option2":null,"option3":null,"sku":"HA-KOOKS-S650-RHD-11513100","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"2529.79","grams":0,"compare_at_price":null,"position":1,"product_id":11354626228566,"created_at":"2026-10-09T18:01:30+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55670837248342,"title":"GREEN Cats","option1":"GREEN Cats","option2":null,"option3":null,"sku":"HA-KOOKS-S650-RHD-11513300","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3381.77","grams":0,"compare_at_price":null,"position":2,"product_id":11354626228566,"created_at":"2026-10-09T18:01:30+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55670837281110,"title":"H.O. GREEN Cats","option1":"H.O. GREEN Cats","option2":null,"option3":null,"sku":"HA-KOOKS-S650-RHD-11513400","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3902.42","grams":0,"compare_at_price":null,"position":3,"product_id":11354626228566,"created_at":"2026-10-09T18:01:30+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86493702357334,"created_at":"2026-10-09T18:03:52+01:00","position":1,"updated_at":"2026-10-09T18:03:56+01:00","product_id":11354626228566,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/6c35ca46b303b095c8ca3f33e00ac1aa_118a039e-701e-4091-98ea-173ac5c26aa6.jpg?v=1791565436","width":4268,"height":2720},{"id":86493702390102,"created_at":"2026-10-09T18:03:52+01:00","position":2,"updated_at":"2026-10-09T18:03:55+01:00","product_id":11354626228566,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/a03b888694418c4e7509844b5688ebdd_aa90705d-ea42-4c03-9b81-7edb344531ba.jpg?v=1791565435","width":1265,"height":998},{"id":86493702422870,"created_at":"2026-10-09T18:03:52+01:00","position":3,"updated_at":"2026-10-09T18:03:56+01:00","product_id":11354626228566,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/0f6968d2ad301b42d6d3924d660d74b6_8c2ce876-eb7e-44e8-b19e-71ac18157713.png?v=1791565436","width":2048,"height":2048}],"options":[{"name":"Connection Pipes","position":1,"values":["Comp. Only","GREEN Cats","H.O. GREEN Cats"]}]},{"id":11350219784534,"title":"Kooks Grand Cherokee WK2 \/ Durango 5.7 HEMI Header Kits","handle":"kooks-2011-2020-wk2-grand-cherokee-durango-header-conn-kits","body_html":"\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","published_at":"2026-10-09T13:35:45+01:00","created_at":"2026-10-08T10:41:52+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:dodge-durango","fits:jeep-grand-cherokee","make:dodge","make:jeep","type:header-kit"],"variants":[{"id":55646914281814,"title":"Performance Cats","option1":"Performance Cats","option2":null,"option3":null,"sku":"3610H421","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3478.89","grams":27216,"compare_at_price":null,"position":1,"product_id":11350219784534,"created_at":"2026-10-08T10:41:52+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646914314582,"title":"GREEN Cats","option1":"GREEN Cats","option2":null,"option3":null,"sku":"3610H431","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"4046.88","grams":27216,"compare_at_price":null,"position":2,"product_id":11350219784534,"created_at":"2026-10-08T10:41:52+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86449319084374,"created_at":"2026-10-08T10:41:52+01:00","position":1,"updated_at":"2026-10-08T10:41:55+01:00","product_id":11350219784534,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/d6aeb9e69b8ef046bceded71dd12b146_5a48c61b-d671-458b-adba-416abdcc79a3.jpg?v=1791452515","width":1500,"height":1500},{"id":86449319117142,"created_at":"2026-10-08T10:41:52+01:00","position":2,"updated_at":"2026-10-08T10:41:55+01:00","product_id":11350219784534,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/d6aeb9e69b8ef046bceded71dd12b146_19b101c0-140c-4429-9200-a2794ba622c7.jpg?v=1791452515","width":1500,"height":1500}],"options":[{"name":"Cat Type","position":1,"values":["Performance Cats","GREEN Cats"]}]},{"id":11350219260246,"title":"Kooks RAM TRX 6.2 HEMI Header and Connection Kits","handle":"kooks-2021-ram-1500-trx-6-2l-header-conn-kits","body_html":"\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","published_at":"2026-10-09T13:36:09+01:00","created_at":"2026-10-08T10:41:49+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:ram-1500","make:ram","type:header-kit"],"variants":[{"id":55646912348502,"title":"1-7\/8\" \/ Comp. Only","option1":"1-7\/8\"","option2":"Comp. Only","option3":null,"sku":"3521H410","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"2798.80","grams":39009,"compare_at_price":null,"position":1,"product_id":11350219260246,"created_at":"2026-10-08T10:41:49+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646912381270,"title":"1-7\/8\" \/ H.O. GREEN Cats","option1":"1-7\/8\"","option2":"H.O. GREEN Cats","option3":null,"sku":"3521H440","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"4171.43","grams":39009,"compare_at_price":null,"position":2,"product_id":11350219260246,"created_at":"2026-10-08T10:41:49+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646912414038,"title":"2\" \/ H.O. GREEN Cats","option1":"2\"","option2":"H.O. GREEN Cats","option3":null,"sku":"3521H640","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"4282.97","grams":39009,"compare_at_price":null,"position":3,"product_id":11350219260246,"created_at":"2026-10-08T10:41:49+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86449316626774,"created_at":"2026-10-08T10:41:49+01:00","position":1,"updated_at":"2026-10-08T10:41:52+01:00","product_id":11350219260246,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/a6de2994656f2941277439554dd8efc6_44a6ecf9-d15d-4bcb-9cd7-b5bfc6cafd3d.jpg?v=1791452512","width":2300,"height":1701},{"id":86449316659542,"created_at":"2026-10-08T10:41:49+01:00","position":2,"updated_at":"2026-10-08T10:41:53+01:00","product_id":11350219260246,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/2992fb639614c2b7abcd11f501b3b7c3_b6587190-5c12-4efe-b389-c4af2fa4321c.jpg?v=1791452513","width":2300,"height":1701},{"id":86449316692310,"created_at":"2026-10-08T10:41:49+01:00","position":3,"updated_at":"2026-10-08T10:41:53+01:00","product_id":11350219260246,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/2992fb639614c2b7abcd11f501b3b7c3_881e3b69-a699-4eac-9068-eaf34c8827f0.jpg?v=1791452513","width":2300,"height":1701}],"options":[{"name":"Header Size","position":1,"values":["1-7\/8\"","2\""]},{"name":"Cat Type","position":2,"values":["Comp. Only","H.O. GREEN Cats"]}]},{"id":11350223389014,"title":"Kooks F-150 Raptor R 2-inch H.O. GREEN Header Kit | 1372H640","handle":"kooks-1372h640","body_html":"\u003ch2\u003eA matched exhaust upgrade for your supercharged Raptor R\u003c\/h2\u003e\u003cp\u003eGive your Raptor R a complete front exhaust upgrade with 2\" Kooks long tube headers and H.O. GREEN catted connections. The 3\" collectors feed matching front pipework that joins the OEM rear exhaust, so your existing cat-back can stay in the build.\u003c\/p\u003e\u003cp\u003eSKU: 1372H640\u003c\/p\u003e\u003ch2\u003eChoose the 2-inch high-output package\u003c\/h2\u003e\u003cp\u003eThis kit pairs the larger primary option with H.O. GREEN cats for the 5.2-litre Raptor R. All installation hardware is included. It is the combined purchase for the headers and front connections, rather than a header-only listing that still needs matching pipes.\u003c\/p\u003e\u003ch2\u003eFit and tune the system together\u003c\/h2\u003e\u003cp\u003eWe recommend professional fitting and calibration matched to the complete exhaust. Kooks also recommends \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/products\/kooks-9003a?variant=55646913790294\"\u003e9003A O2 spacers\u003c\/a\u003e for this package. Discuss the sensor arrangement with your installer as part of the conversion; a spacer is not a substitute for appropriate calibration.\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\u003e2023-2025\u003c\/td\u003e\n\u003ctd\u003eFord F-150 Raptor R\u003c\/td\u003e\n\u003ctd\u003e5.2L supercharged V8\u003c\/td\u003e\n\u003ctd\u003e1372H640\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\u003e1372H640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2023+ F-150 Raptor R 5.2L 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\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e2\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFront pipes\u003c\/td\u003e\n\u003ctd\u003eH.O. GREEN catted connections to OEM rear exhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eInstallation hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer fitting recommendation\u003c\/td\u003e\n\u003ctd\u003e9003A O2 spacers\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 V6 Raptor?\u003c\/h3\u003e\u003cp\u003eThis is the 5.2-litre supercharged Raptor R kit, rather than the V6 Raptor application.\u003c\/p\u003e\u003ch3\u003eAre the H.O. GREEN connection pipes included?\u003c\/h3\u003e\u003cp\u003eYes. They are supplied with the 2\" headers in 1372H640.\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","published_at":"2026-10-09T13:33:30+01:00","created_at":"2026-10-08T10:42:25+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:ford-f-150","make:ford","type:header-kit"],"variants":[{"id":55646923161942,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"1372H640","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3920.34","grams":30391,"compare_at_price":null,"position":1,"product_id":11350223389014,"created_at":"2026-10-08T10:42:25+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86450652840278,"created_at":"2026-10-08T10:59:39+01:00","position":1,"updated_at":"2026-10-08T10:59:44+01:00","product_id":11350223389014,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/8abe30c25f1b63a0ac8ca57005a47dbd_c48a818b-6ff7-45c6-870e-339b4faa4664.png?v=1791453584","width":2048,"height":2048}],"options":[{"name":"Title","position":1,"values":["Default Title"]}]},{"id":11350223520086,"title":"Kooks Super Duty 7.3 Godzilla Header Kits (2020-2022)","handle":"kooks-2020-2022-f250-f350-7-3l-godzilla-header-conn-kits-a8a28805","body_html":"\u003ch2\u003eChoose a Kooks package for the Godzilla build you want\u003c\/h2\u003e\u003cp\u003eBring headers, catted front connections and fitting hardware together for your 7.3-litre Super Duty. These Kooks packages offer 1-7\/8\" GREEN, 1-7\/8\" H.O. GREEN and 2\" GREEN combinations, each joining the OEM rear exhaust on the supported 2020-2022 F-250 and F-350.\u003c\/p\u003e\u003cp\u003eSKUs: 1400H430, 1400H440, 1400H630\u003c\/p\u003e\u003ch2\u003eChoose the primary and catalyst together\u003c\/h2\u003e\u003cp\u003eChoose 1-7\/8-inch headers with GREEN or H.O. GREEN cats, or 2-inch headers with GREEN cats. Each option uses 3-inch collectors.\u003c\/p\u003e\u003ch2\u003eKeep the rear exhaust you already have\u003c\/h2\u003e\u003cp\u003eEach package supplies stainless connections to the OEM rear exhaust and the installation hardware. A rear system using the factory interface can remain, keeping the purchase focused on the engine-to-rear-exhaust 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\u003e1400H430\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; 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\u003e1400H440\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; 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\u003e1400H630\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 2\"; Cat Type: GREEN Cats\u003c\/td\u003e\n\u003ctd\u003e2\" headers; GREEN Cats front connections; 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\u003e2020-2022\u003c\/td\u003e\n\u003ctd\u003eFord F-250 Super Duty Platinum\u003c\/td\u003e\n\u003ctd\u003e7.3L V8\u003c\/td\u003e\n\u003ctd\u003e1400H430, 1400H440, 1400H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2022\u003c\/td\u003e\n\u003ctd\u003eFord F-250 Super Duty King Ranch\u003c\/td\u003e\n\u003ctd\u003e7.3L V8\u003c\/td\u003e\n\u003ctd\u003e1400H430, 1400H440, 1400H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2022\u003c\/td\u003e\n\u003ctd\u003eFord F-250 Super Duty XL\u003c\/td\u003e\n\u003ctd\u003e7.3L V8\u003c\/td\u003e\n\u003ctd\u003e1400H430, 1400H440, 1400H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2022\u003c\/td\u003e\n\u003ctd\u003eFord F-250 Super Duty Lariat\u003c\/td\u003e\n\u003ctd\u003e7.3L V8\u003c\/td\u003e\n\u003ctd\u003e1400H430, 1400H440, 1400H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2022\u003c\/td\u003e\n\u003ctd\u003eFord F-250 Super Duty XLT\u003c\/td\u003e\n\u003ctd\u003e7.3L V8\u003c\/td\u003e\n\u003ctd\u003e1400H430, 1400H440, 1400H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2022\u003c\/td\u003e\n\u003ctd\u003eFord F-350 Super Duty XLT\u003c\/td\u003e\n\u003ctd\u003e7.3L V8\u003c\/td\u003e\n\u003ctd\u003e1400H430, 1400H440, 1400H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2022\u003c\/td\u003e\n\u003ctd\u003eFord F-350 Super Duty King Ranch\u003c\/td\u003e\n\u003ctd\u003e7.3L V8\u003c\/td\u003e\n\u003ctd\u003e1400H430, 1400H440, 1400H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2022\u003c\/td\u003e\n\u003ctd\u003eFord F-350 Super Duty Platinum\u003c\/td\u003e\n\u003ctd\u003e7.3L V8\u003c\/td\u003e\n\u003ctd\u003e1400H430, 1400H440, 1400H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2022\u003c\/td\u003e\n\u003ctd\u003eFord F-350 Super Duty XL\u003c\/td\u003e\n\u003ctd\u003e7.3L V8\u003c\/td\u003e\n\u003ctd\u003e1400H430, 1400H440, 1400H630\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2022\u003c\/td\u003e\n\u003ctd\u003eFord F-350 Super Duty Lariat\u003c\/td\u003e\n\u003ctd\u003e7.3L V8\u003c\/td\u003e\n\u003ctd\u003e1400H430, 1400H440, 1400H630\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\u003e1400H430, 1400H440, 1400H630\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2020-2022 F-250 \/ F-350 Super Duty 7.3L Godzilla petrol 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 \/ catalyst choices\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" GREEN; 1-7\/8\" H.O. GREEN; 2\" 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\u003eOEM exhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eHeaders, selected catted connections 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\u003eWhich kit has 2-inch headers?\u003c\/h3\u003e\u003cp\u003e1400H630 pairs 2\" headers with GREEN catted connections.\u003c\/p\u003e\u003ch3\u003eIs H.O. GREEN available with the smaller primary?\u003c\/h3\u003e\u003cp\u003eYes. 1400H440 is the 1-7\/8\" H.O. GREEN package.\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","published_at":"2026-10-09T13:33:18+01:00","created_at":"2026-10-08T10:42:28+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:ford-f-250-super-duty","fits:ford-f-350-super-duty","make:ford","type:header-kit"],"variants":[{"id":55646923358550,"title":"1-7\/8\" \/ GREEN Cats","option1":"1-7\/8\"","option2":"GREEN Cats","option3":null,"sku":"1400H430","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"2967.74","grams":34019,"compare_at_price":null,"position":1,"product_id":11350223520086,"created_at":"2026-10-08T10:42:28+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646923391318,"title":"1-7\/8\" \/ H.O. GREEN Cats","option1":"1-7\/8\"","option2":"H.O. GREEN Cats","option3":null,"sku":"1400H440","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3488.40","grams":34019,"compare_at_price":null,"position":2,"product_id":11350223520086,"created_at":"2026-10-08T10:42:28+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646923424086,"title":"2\" \/ GREEN Cats","option1":"2\"","option2":"GREEN Cats","option3":null,"sku":"1400H630","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"2973.48","grams":34019,"compare_at_price":null,"position":3,"product_id":11350223520086,"created_at":"2026-10-08T10:42:28+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86449379246422,"created_at":"2026-10-08T10:42:28+01:00","position":1,"updated_at":"2026-10-08T10:42:32+01:00","product_id":11350223520086,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/116c29b6ed0c141dabd85f515ab5e39f_abaab996-55e0-46f8-815b-c4244dfc2b4e.png?v=1791452552","width":1280,"height":1028},{"id":86449379279190,"created_at":"2026-10-08T10:42:28+01:00","position":2,"updated_at":"2026-10-08T10:42:31+01:00","product_id":11350223520086,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/116c29b6ed0c141dabd85f515ab5e39f_891b2efe-e7ea-48d2-88b7-917ada6a7cd9.png?v=1791452551","width":1280,"height":1028},{"id":86449379311958,"created_at":"2026-10-08T10:42:28+01:00","position":3,"updated_at":"2026-10-08T10:42:36+01:00","product_id":11350223520086,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/116c29b6ed0c141dabd85f515ab5e39f_ef5b9866-716a-4d97-972a-10f154a0f14f.png?v=1791452556","width":1280,"height":1028},{"id":86449379344726,"created_at":"2026-10-08T10:42:28+01:00","position":4,"updated_at":"2026-10-08T10:42:32+01:00","product_id":11350223520086,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/116c29b6ed0c141dabd85f515ab5e39f_bc0b059b-834f-46f2-af3a-97e1bfa709c0.png?v=1791452552","width":1280,"height":1028}],"options":[{"name":"Header Size","position":1,"values":["1-7\/8\"","2\""]},{"name":"Cat Type","position":2,"values":["GREEN Cats","H.O. GREEN Cats"]}]},{"id":11350223356246,"title":"Kooks F-150 Raptor R 1-7\/8-inch GREEN Header Kit | 1372H430","handle":"kooks-1372h430","body_html":"\u003ch2\u003eGive your Raptor R a complete Kooks front exhaust upgrade\u003c\/h2\u003e\u003cp\u003ePair your supercharged 5.2-litre Raptor R with 1-7\/8\" Kooks long tube headers and GREEN catted connections. The kit joins the OEM rear exhaust and includes the fitting hardware, keeping the headers and their matching front pipes together in one purchase.\u003c\/p\u003e\u003cp\u003eSKU: 1372H430\u003c\/p\u003e\u003ch2\u003eThe 1-7\/8-inch GREEN package\u003c\/h2\u003e\u003cp\u003eThe stainless headers use 3\" collectors feeding the supplied GREEN catted front connections. This is the 1-7\/8\" package, distinct from the separate 2\" H.O. GREEN kit, so you can choose around your finished engine and exhaust setup.\u003c\/p\u003e\u003ch2\u003ePlan the fitting and tune together\u003c\/h2\u003e\u003cp\u003eAll hardware is included. Kooks recommends \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/products\/kooks-9003a?variant=55646913790294\"\u003e9003A O2 spacers\u003c\/a\u003e for this kit, and we recommend tuning matched to your complete exhaust. Have your installer plan the sensor arrangement alongside the calibration.\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\u003e2023-2025\u003c\/td\u003e\n\u003ctd\u003eFord F-150 Raptor R\u003c\/td\u003e\n\u003ctd\u003e5.2L supercharged V8\u003c\/td\u003e\n\u003ctd\u003e1372H430\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\u003e1372H430\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2023+ F-150 Raptor R 5.2L 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\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\u003eGREEN catted; OEM rear outlet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eInstallation hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer fitting recommendation\u003c\/td\u003e\n\u003ctd\u003e9003A O2 spacers\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 V8 Raptor R?\u003c\/h3\u003e\u003cp\u003eYes. It is the supercharged 5.2-litre application.\u003c\/p\u003e\u003ch3\u003eDo the headers need separate connection pipes?\u003c\/h3\u003e\u003cp\u003eThe matching GREEN catted connections are included in this 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","published_at":"2026-10-09T13:33:35+01:00","created_at":"2026-10-08T10:42:24+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:ford-f-150","make:ford","type:header-kit"],"variants":[{"id":55646923129174,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"1372H430","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3277.51","grams":30391,"compare_at_price":null,"position":1,"product_id":11350223356246,"created_at":"2026-10-08T10:42:24+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86450652381526,"created_at":"2026-10-08T10:59:39+01:00","position":1,"updated_at":"2026-10-08T10:59:44+01:00","product_id":11350223356246,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/ff7d82c2ae98cd5e6ce10dfc660af7c3.png?v=1791453584","width":2048,"height":2048}],"options":[{"name":"Title","position":1,"values":["Default Title"]}]},{"id":11350223192406,"title":"Kooks F-150 5.0 Performance Header Kit, 1-3\/4-inch (2021-2026) | 1371H220","handle":"kooks-2021-f150-5-0l-header-conn-kits-8a19a009","body_html":"\u003ch2\u003eStart your Coyote exhaust upgrade with a complete front kit\u003c\/h2\u003e\u003cp\u003ePair 1-3\/4\" Kooks long tube headers with a matching Performance-catted Y-pipe for your 2021-2026 F-150 5.0. The stainless front system joins the OEM rear exhaust, giving you a combined purchase for a naturally aspirated Coyote build.\u003c\/p\u003e\u003cp\u003eSKU: 1371H220\u003c\/p\u003e\u003ch2\u003eThe 1-3\/4-inch Performance combination\u003c\/h2\u003e\u003cp\u003eThis kit uses 1-3\/4\" primaries with 3\" collectors and a supplied 3\" catted Y-pipe. It gives you this specific primary-and-catalyst combination alongside the separate GREEN and larger-primary packages.\u003c\/p\u003e\u003ch2\u003eKeep a compatible rear system\u003c\/h2\u003e\u003cp\u003eThe Y-pipe connects to the OEM rear interface. That allows a cat-back using the factory connection to remain, while you fit and calibrate the new front system around the rest of your engine setup.\u003c\/p\u003e\u003ch2\u003eFitting your exhaust\u003c\/h2\u003e\u003cp\u003eOn 2018-on F-150s, the driver-side motor-mount heat shield should be removed or modified to give the header primaries enough clearance.\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\u003e2021-2026\u003c\/td\u003e\n\u003ctd\u003eFord F-150 XL\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1371H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2026\u003c\/td\u003e\n\u003ctd\u003eFord F-150 XLT\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1371H220\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2026\u003c\/td\u003e\n\u003ctd\u003eFord F-150 Lariat\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1371H220\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\u003e1371H220\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2021-2026 F-150 5.0L Coyote V8; listed trims 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\u003e1-3\/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; OEM rear connection\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\u003e2018-on fitting provision\u003c\/td\u003e\n\u003ctd\u003eDriver-side motor-mount heat-shield removal or modification recommended for primary-tube 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\u003eAre the cats GREEN?\u003c\/h3\u003e\u003cp\u003e1371H220 uses Performance cats. GREEN-catted packages are separate choices.\u003c\/p\u003e\u003ch3\u003eIs the Y-pipe included?\u003c\/h3\u003e\u003cp\u003eYes. The Performance-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","published_at":"2026-10-09T13:33:42+01:00","created_at":"2026-10-08T10:42:20+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:ford-f-150","make:ford","type:header-kit"],"variants":[{"id":55646922637654,"title":"1-3\/4\" \/ Performance Cats","option1":"1-3\/4\"","option2":"Performance Cats","option3":null,"sku":"1371H220","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3422.49","grams":30391,"compare_at_price":null,"position":1,"product_id":11350223192406,"created_at":"2026-10-08T10:42:20+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86449372004694,"created_at":"2026-10-08T10:42:20+01:00","position":1,"updated_at":"2026-10-08T10:42:27+01:00","product_id":11350223192406,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/e1a012d5add03a8111cc0611020855b5_0153297c-b2f3-4fae-b76e-6c833f58431f.png?v=1791452547","width":3375,"height":3375},{"id":86449372037462,"created_at":"2026-10-08T10:42:20+01:00","position":2,"updated_at":"2026-10-08T10:42:28+01:00","product_id":11350223192406,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/e1a012d5add03a8111cc0611020855b5_338e5aca-d322-4aea-8473-67c4b2129d67.png?v=1791452548","width":3375,"height":3375},{"id":86449372070230,"created_at":"2026-10-08T10:42:20+01:00","position":3,"updated_at":"2026-10-08T10:42:27+01:00","product_id":11350223192406,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/e1a012d5add03a8111cc0611020855b5_fd43c2ce-5544-4272-95d7-0b9ff7be8ff3.png?v=1791452547","width":3375,"height":3375},{"id":86449372102998,"created_at":"2026-10-08T10:42:20+01:00","position":4,"updated_at":"2026-10-08T10:42:27+01:00","product_id":11350223192406,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/e1a012d5add03a8111cc0611020855b5_9d44207a-3e92-405a-9366-9154b0655717.png?v=1791452547","width":3375,"height":3375}],"options":[{"name":"Header Size","position":1,"values":["1-3\/4\""]},{"name":"Cat Type","position":2,"values":["Performance Cats"]}]},{"id":11350216999254,"title":"Kooks Jeep SRT \/ Durango SRT 6.4 Header Kit (2012-2020) | 3410H421","handle":"kooks-2012-2020-grand-cherokee-durango-6-4l-6-2l-header-conn-kits-87c06638","body_html":"\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","published_at":"2026-10-09T13:37:35+01:00","created_at":"2026-10-08T10:41:39+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:dodge-durango","fits:jeep-grand-cherokee","make:dodge","make:jeep","type:header-kit"],"variants":[{"id":55646908252502,"title":"1-7\/8\" \/ Performance Cats","option1":"1-7\/8\"","option2":"Performance Cats","option3":null,"sku":"3410H421","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3518.80","grams":22680,"compare_at_price":null,"position":1,"product_id":11350216999254,"created_at":"2026-10-08T10:41:39+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86449296671062,"created_at":"2026-10-08T10:41:39+01:00","position":1,"updated_at":"2026-10-08T10:41:42+01:00","product_id":11350216999254,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/3b1499841e147f42e6db9ad2b7342d6b_9f8a3786-8774-4c8f-b7a8-b79bf701e40f.jpg?v=1791452502","width":1500,"height":1500},{"id":86449296703830,"created_at":"2026-10-08T10:41:39+01:00","position":2,"updated_at":"2026-10-08T10:41:43+01:00","product_id":11350216999254,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/36d3340b762f207417fe96c9d62ef049_489076bb-7196-40e8-8041-868d5c28df5d.jpg?v=1791452503","width":1500,"height":1500},{"id":86449296736598,"created_at":"2026-10-08T10:41:39+01:00","position":3,"updated_at":"2026-10-08T10:41:42+01:00","product_id":11350216999254,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/59a07b40deafca2a65c72e1cf94d0034_90ea783f-34e4-4932-998e-be43d80d642b.jpg?v=1791452502","width":1500,"height":1500},{"id":86449296769366,"created_at":"2026-10-08T10:41:39+01:00","position":4,"updated_at":"2026-10-08T10:41:42+01:00","product_id":11350216999254,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/51ae1720641e9340824957b02946fc0f_1b96f47b-7bf7-439a-b670-7fca16285ecc.jpg?v=1791452502","width":800,"height":800},{"id":86449296802134,"created_at":"2026-10-08T10:41:39+01:00","position":5,"updated_at":"2026-10-08T10:41:42+01:00","product_id":11350216999254,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/51ae1720641e9340824957b02946fc0f_51ff342b-6050-4ece-aed6-fe8ffb351c22.jpg?v=1791452502","width":800,"height":800},{"id":86449296834902,"created_at":"2026-10-08T10:41:39+01:00","position":6,"updated_at":"2026-10-08T10:41:43+01:00","product_id":11350216999254,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/64974514b1185554d349ca8c5f50c5d3_66de7013-53b6-41d5-998e-8f853eda3df1.jpg?v=1791452503","width":1500,"height":1500}],"options":[{"name":"Header Size","position":1,"values":["1-7\/8\""]},{"name":"Cat Type","position":2,"values":["Performance Cats"]}]},{"id":11350223257942,"title":"Kooks Ford F-150 Coyote 5.0 Header and Y-Pipe Kits (2021-2026)","handle":"kooks-2021-f150-5-0l-header-conn-kits-f93def51","body_html":"\u003ch2\u003eMake your Coyote truck more enjoyable every time you use it\u003c\/h2\u003e\u003cp\u003eUpgrade the front exhaust on your 5.0 F-150 with Kooks headers and a matching Y-pipe. Choose 1-3\/4-inch headers with GREEN cats, or 1-7\/8-inch headers with Performance or GREEN cats. Each joins the OEM rear exhaust, so you can keep your existing cat-back.\u003c\/p\u003e\u003cp\u003eSKUs: 1371H230, 1371H420, 1371H430\u003c\/p\u003e\u003ch2\u003eChoose the complete combination\u003c\/h2\u003e\u003cp\u003eA smaller primary is not automatically the lesser choice. Choose the 1-3\/4\" or 1-7\/8\" header around your engine and modifications, then choose the catalyst for your intended use. The Performance-catted kit is for naturally aspirated applications; GREEN supports forced induction.\u003c\/p\u003e\u003ch2\u003eA useful route to keep your rear exhaust\u003c\/h2\u003e\u003cp\u003eBoth primary sizes use 3\" collectors and a supplied Y-pipe to the OEM rear connection. The 1-7\/8\" GREEN kit expressly includes the gaskets, bolts and O2 extensions needed for installation. Match the complete kit to your 2021-2026 truck rather than using an earlier F-150 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\u003e1371H230\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-3\/4\"; Cat Type: GREEN Cats\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\u003e1371H420\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\u003e1371H430\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; Gaskets, bolts and O2 extensions 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\u003eFitting your exhaust\u003c\/h2\u003e\u003cp\u003eOn 2018-on F-150s, the driver-side motor-mount heat shield should be removed or modified to give the header primaries enough clearance.\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\u003e2021-2026\u003c\/td\u003e\n\u003ctd\u003eFord F-150\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1371H230, 1371H420, 1371H430\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\u003e1371H230, 1371H420, 1371H430\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2021-2026 F-150, 5.0L Coyote 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\" GREEN; 1-7\/8\" Performance or GREEN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollectors\/Y-pipe\u003c\/td\u003e\n\u003ctd\u003e3\" collectors; matching Y-pipe to OEM rear exhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1371H430 fitting parts\u003c\/td\u003e\n\u003ctd\u003eGaskets, bolts and O2 extensions included\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\u003ctr\u003e\n\u003ctd\u003e2018-on fitting provision\u003c\/td\u003e\n\u003ctd\u003eDriver-side motor-mount heat-shield removal or modification recommended for primary-tube 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\u003eWhat changes between the three SKUs?\u003c\/h3\u003e\u003cp\u003e1371H230 uses 1-3\/4\" headers with GREEN cats. 1371H420 uses 1-7\/8\" with Performance cats. 1371H430 uses 1-7\/8\" with GREEN cats.\u003c\/p\u003e\u003ch3\u003eIs the original cat-back retained?\u003c\/h3\u003e\u003cp\u003eThe supplied Y-pipe connects to the OEM rear exhaust interface, so a compatible rear system can stay.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003e1371H420: 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","published_at":"2026-10-09T13:33:41+01:00","created_at":"2026-10-08T10:42:21+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:ford-f-150","make:ford","type:header-kit"],"variants":[{"id":55646922703190,"title":"1-3\/4\" \/ GREEN Cats","option1":"1-3\/4\"","option2":"GREEN Cats","option3":null,"sku":"1371H230","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3990.48","grams":30391,"compare_at_price":null,"position":1,"product_id":11350223257942,"created_at":"2026-10-08T10:42:21+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646922735958,"title":"1-7\/8\" \/ Performance Cats","option1":"1-7\/8\"","option2":"Performance Cats","option3":null,"sku":"1371H420","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3497.15","grams":30391,"compare_at_price":null,"position":2,"product_id":11350223257942,"created_at":"2026-10-08T10:42:21+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646922768726,"title":"1-7\/8\" \/ GREEN Cats","option1":"1-7\/8\"","option2":"GREEN Cats","option3":null,"sku":"1371H430","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"4065.14","grams":30391,"compare_at_price":null,"position":3,"product_id":11350223257942,"created_at":"2026-10-08T10:42:21+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86449372528982,"created_at":"2026-10-08T10:42:21+01:00","position":1,"updated_at":"2026-10-08T10:42:26+01:00","product_id":11350223257942,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/e1a012d5add03a8111cc0611020855b5_05ed33fe-ff3f-4c20-8a0e-7a7ac6f055cd.png?v=1791452546","width":3375,"height":3375},{"id":86449372561750,"created_at":"2026-10-08T10:42:21+01:00","position":2,"updated_at":"2026-10-08T10:42:27+01:00","product_id":11350223257942,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/e1a012d5add03a8111cc0611020855b5_56da28fc-115b-4053-8cb3-991fe74a739c.png?v=1791452547","width":3375,"height":3375},{"id":86449372594518,"created_at":"2026-10-08T10:42:21+01:00","position":3,"updated_at":"2026-10-08T10:42:26+01:00","product_id":11350223257942,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/e1a012d5add03a8111cc0611020855b5_1f8b220d-0d18-44de-aa91-9191c9bdb6f6.png?v=1791452546","width":3375,"height":3375},{"id":86449372627286,"created_at":"2026-10-08T10:42:21+01:00","position":4,"updated_at":"2026-10-08T10:42:27+01:00","product_id":11350223257942,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/e1a012d5add03a8111cc0611020855b5_606574d3-2efb-489a-862e-cf3a3dddb698.png?v=1791452547","width":3375,"height":3375}],"options":[{"name":"Header Size","position":1,"values":["1-3\/4\"","1-7\/8\""]},{"name":"Cat Type","position":2,"values":["GREEN Cats","Performance Cats"]}]},{"id":11350222831958,"title":"Kooks GM 1500 4.8 \/ 5.3 Header Kit, 1-3\/4-inch (1999-2006) | 2851H220","handle":"kooks-2851h220","body_html":"\u003ch2\u003eChoose a matched Kooks kit for your GM V8\u003c\/h2\u003e\u003cp\u003eUpgrade your supported GM 1500 truck or SUV with 1-3\/4\" Kooks long tube headers and a supplied Performance-catted Y-pipe. This package covers the listed 1999-2006 4.8- and 5.3-litre applications, connecting to the OEM rear exhaust.\u003c\/p\u003e\u003cp\u003eSKU: 2851H220\u003c\/p\u003e\u003ch2\u003eThe 1-3\/4-inch package\u003c\/h2\u003e\u003cp\u003eThe headers use 3\" collectors feeding the matching 3\" stainless Y-pipe. This is the smaller-primary package alongside the separate 1-7\/8\" kit, giving you a choice to discuss around your engine and intended modifications.\u003c\/p\u003e\u003ch2\u003eKeep a rear exhaust using the factory interface\u003c\/h2\u003e\u003cp\u003eThe Y-pipe has an OEM rear outlet, so a compatible rear system can remain in place. The Performance catalysts are for naturally aspirated engines; choose a forced-induction catalyst arrangement for a boosted build.\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e2851H220\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\u003e1-3\/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\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\u003eHow does this differ from 2851H420?\u003c\/h3\u003e\u003cp\u003eThis kit uses 1-3\/4\" primaries. 2851H420 uses 1-7\/8\" primaries.\u003c\/p\u003e\u003ch3\u003eIs the Y-pipe included?\u003c\/h3\u003e\u003cp\u003eYes. The headers and Performance-catted Y-pipe 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","published_at":"2026-10-09T13:33:54+01:00","created_at":"2026-10-08T10:42:14+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:cadillac-escalade","fits:chevrolet-avalanche","fits:chevrolet-silverado-1500","fits:chevrolet-suburban","fits:chevrolet-tahoe","fits:gmc-sierra-1500","fits:gmc-yukon","fits:gmc-yukon-xl","make:cadillac","make:chevrolet","make:gmc","type:header-kit"],"variants":[{"id":55646921195862,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"2851H220","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3261.94","grams":23587,"compare_at_price":null,"position":1,"product_id":11350222831958,"created_at":"2026-10-08T10:42:14+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86449359847766,"created_at":"2026-10-08T10:42:14+01:00","position":1,"updated_at":"2026-10-08T10:42:17+01:00","product_id":11350222831958,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/3e54f8a12df5579285a7f600ad120030_0ca0b1c2-369e-41d2-977d-7e2aadb986c2.jpg?v=1791452537","width":2406,"height":1600},{"id":86449359880534,"created_at":"2026-10-08T10:42:14+01:00","position":2,"updated_at":"2026-10-08T10:42:16+01:00","product_id":11350222831958,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/ef99892f866d95595951e5c73d4f22ef_eaab26dd-ef70-40ab-afe5-356728c6c848.jpg?v=1791452536","width":1500,"height":1500}],"options":[{"name":"Title","position":1,"values":["Default Title"]}]},{"id":11350223552854,"title":"Kooks Super Duty 7.3 Godzilla H.O. GREEN Header Kit (2020-2022) | 1400H640","handle":"kooks-2020-2022-f250-f350-7-3l-godzilla-header-conn-kits-0af1320f","body_html":"\u003ch2\u003eGive your Godzilla V8 a Kooks exhaust upgrade\u003c\/h2\u003e\u003cp\u003ePair your 7.3-litre Godzilla engine with stainless long tube headers and H.O. GREEN catted connections. This Kooks kit joins the OEM exhaust on the supported 2020-2022 F-250 and F-350, with the fitting hardware included so you can plan the front exhaust conversion as one package.\u003c\/p\u003e\u003cp\u003eSKU: 1400H640\u003c\/p\u003e\u003ch2\u003eHeaders, front pipes and hardware together\u003c\/h2\u003e\u003cp\u003eThe 304 stainless headers feed matching H.O. GREEN catted pipework with an OEM rear connection. That lets you keep a rear exhaust using the factory interface while replacing the manifolds and front connections together.\u003c\/p\u003e\u003ch2\u003eFor your 7.3-litre petrol Super Duty\u003c\/h2\u003e\u003cp\u003eThis is the Godzilla petrol V8 application. Choose it against the exact F-250 or F-350 year and trim listed below, and have the installation and calibration planned around any other engine modifications.\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\u003e2020-2022\u003c\/td\u003e\n\u003ctd\u003eFord F-250 Super Duty XLT\u003c\/td\u003e\n\u003ctd\u003e7.3L V8\u003c\/td\u003e\n\u003ctd\u003e1400H640\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2022\u003c\/td\u003e\n\u003ctd\u003eFord F-250 Super Duty Lariat\u003c\/td\u003e\n\u003ctd\u003e7.3L V8\u003c\/td\u003e\n\u003ctd\u003e1400H640\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2022\u003c\/td\u003e\n\u003ctd\u003eFord F-250 Super Duty Platinum\u003c\/td\u003e\n\u003ctd\u003e7.3L V8\u003c\/td\u003e\n\u003ctd\u003e1400H640\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2022\u003c\/td\u003e\n\u003ctd\u003eFord F-250 Super Duty King Ranch\u003c\/td\u003e\n\u003ctd\u003e7.3L V8\u003c\/td\u003e\n\u003ctd\u003e1400H640\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2022\u003c\/td\u003e\n\u003ctd\u003eFord F-250 Super Duty XL\u003c\/td\u003e\n\u003ctd\u003e7.3L V8\u003c\/td\u003e\n\u003ctd\u003e1400H640\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2022\u003c\/td\u003e\n\u003ctd\u003eFord F-350 Super Duty XL\u003c\/td\u003e\n\u003ctd\u003e7.3L V8\u003c\/td\u003e\n\u003ctd\u003e1400H640\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2022\u003c\/td\u003e\n\u003ctd\u003eFord F-350 Super Duty Platinum\u003c\/td\u003e\n\u003ctd\u003e7.3L V8\u003c\/td\u003e\n\u003ctd\u003e1400H640\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2022\u003c\/td\u003e\n\u003ctd\u003eFord F-350 Super Duty King Ranch\u003c\/td\u003e\n\u003ctd\u003e7.3L V8\u003c\/td\u003e\n\u003ctd\u003e1400H640\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2022\u003c\/td\u003e\n\u003ctd\u003eFord F-350 Super Duty XLT\u003c\/td\u003e\n\u003ctd\u003e7.3L V8\u003c\/td\u003e\n\u003ctd\u003e1400H640\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\u003e1400H640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2020-2022 F-250 \/ F-350 Super Duty 7.3L Godzilla petrol 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\u003eFront connections\u003c\/td\u003e\n\u003ctd\u003eH.O. GREEN catted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear interface\u003c\/td\u003e\n\u003ctd\u003eOEM exhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eLong tube headers, catted connections 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\u003eDoes it include the catted connections?\u003c\/h3\u003e\u003cp\u003eYes. The H.O. GREEN front connections are supplied with the headers.\u003c\/p\u003e\u003ch3\u003eIs this for a Power Stroke diesel?\u003c\/h3\u003e\u003cp\u003eThis kit is for the 7.3-litre Godzilla petrol V8.\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","published_at":"2026-10-09T13:33:17+01:00","created_at":"2026-10-08T10:42:29+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:ford-f-250-super-duty","fits:ford-f-350-super-duty","make:ford","type:header-kit"],"variants":[{"id":55646923456854,"title":"2\" \/ H.O. GREEN Cats","option1":"2\"","option2":"H.O. GREEN Cats","option3":null,"sku":"1400H640","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3494.13","grams":34019,"compare_at_price":null,"position":1,"product_id":11350223552854,"created_at":"2026-10-08T10:42:29+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86449381572950,"created_at":"2026-10-08T10:42:29+01:00","position":1,"updated_at":"2026-10-08T10:42:32+01:00","product_id":11350223552854,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/116c29b6ed0c141dabd85f515ab5e39f_6b71099a-c494-419c-ab7c-a07add5c9bb5.png?v=1791452552","width":1280,"height":1028},{"id":86449381605718,"created_at":"2026-10-08T10:42:29+01:00","position":2,"updated_at":"2026-10-08T10:42:33+01:00","product_id":11350223552854,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/116c29b6ed0c141dabd85f515ab5e39f_0f32fe63-0242-4927-a470-053e6996d55b.png?v=1791452553","width":1280,"height":1028},{"id":86449381638486,"created_at":"2026-10-08T10:42:29+01:00","position":3,"updated_at":"2026-10-08T10:42:32+01:00","product_id":11350223552854,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/116c29b6ed0c141dabd85f515ab5e39f_05377458-56e8-4710-b828-6fd260cdaddc.png?v=1791452552","width":1280,"height":1028},{"id":86449381671254,"created_at":"2026-10-08T10:42:29+01:00","position":4,"updated_at":"2026-10-08T10:42:32+01:00","product_id":11350223552854,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/116c29b6ed0c141dabd85f515ab5e39f_117ea261-6331-4e80-8c3a-c140c1fc12aa.png?v=1791452552","width":1280,"height":1028}],"options":[{"name":"Header Size","position":1,"values":["2\""]},{"name":"Cat Type","position":2,"values":["H.O. GREEN Cats"]}]},{"id":11350221455702,"title":"Kooks Trailblazer SS LS2 Header and Y-Pipe Kit (2006-2009) | 2720H420","handle":"kooks-2720h420","body_html":"\u003ch2\u003eMake more of the LS2 in your Trailblazer SS\u003c\/h2\u003e\u003cp\u003eUpgrade your Trailblazer SS with Kooks 1-7\/8\" long tube headers and a matching Performance-catted Y-pipe. This stainless front system brings the principal exhaust conversion components together for the 6.0-litre LS2, joining the OEM rear exhaust.\u003c\/p\u003e\u003cp\u003eSKU: 2720H420\u003c\/p\u003e\u003ch2\u003eHeaders and Y-pipe supplied together\u003c\/h2\u003e\u003cp\u003eThe headers use 3\" collectors, feeding the 3\" front pipework of the supplied Y-pipe before its OEM outlet. The matched package lets a compatible rear exhaust stay in the installation.\u003c\/p\u003e\u003ch2\u003eFor the naturally aspirated SS\u003c\/h2\u003e\u003cp\u003eThis is the 2006-2009 Trailblazer SS 6.0-litre application. Performance cats suit a naturally aspirated LS2; a boosted engine needs a catalyst arrangement suitable for forced induction.\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\u003e2006-2009\u003c\/td\u003e\n\u003ctd\u003eChevrolet Trailblazer SS\u003c\/td\u003e\n\u003ctd\u003e6.0L V8\u003c\/td\u003e\n\u003ctd\u003e2720H420\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\u003e2720H420\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2006-2009 Trailblazer SS, LS2 6.0L 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\u003e1-7\/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\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs this for the six-cylinder Trailblazer?\u003c\/h3\u003e\u003cp\u003eThis package is for the SS with its LS2 6.0-litre V8.\u003c\/p\u003e\u003ch3\u003eAre the front cats supplied?\u003c\/h3\u003e\u003cp\u003eYes. They are part of the supplied Performance-catted Y-pipe.\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","published_at":"2026-10-09T13:34:42+01:00","created_at":"2026-10-08T10:42:01+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:chevrolet-trailblazer-ss","make:chevrolet","type:header-kit"],"variants":[{"id":55646918869334,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"2720H420","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3287.00","grams":25401,"compare_at_price":null,"position":1,"product_id":11350221455702,"created_at":"2026-10-08T10:42:01+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86449340121430,"created_at":"2026-10-08T10:42:01+01:00","position":1,"updated_at":"2026-10-08T10:42:04+01:00","product_id":11350221455702,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/e6f6b865397799d33e4ba9580f2559ad_de89621f-30be-44b3-b24a-5432778d57d2.jpg?v=1791452524","width":1500,"height":1500},{"id":86449340154198,"created_at":"2026-10-08T10:42:01+01:00","position":2,"updated_at":"2026-10-08T10:42:04+01:00","product_id":11350221455702,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/9b98a3716da83b7bae47985540e9486f_f80b7782-7530-4522-88b2-2a8412362143.jpg?v=1791452524","width":1500,"height":1500}],"options":[{"name":"Title","position":1,"values":["Default Title"]}]},{"id":11350218801494,"title":"Kooks RAM 1500 DT 5.7 HEMI Header and Y-Pipe Kits (2019-2024)","handle":"kooks-2019-2024-ram-1500-new-body-style-5-7l-header-conn-kits","body_html":"\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","published_at":"2026-10-09T13:36:25+01:00","created_at":"2026-10-08T10:41:47+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:ram-1500","make:ram","type:header-kit"],"variants":[{"id":55646911660374,"title":"Comp. Only","option1":"Comp. Only","option2":null,"option3":null,"sku":"3520H410","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"4331.29","grams":34019,"compare_at_price":null,"position":1,"product_id":11350218801494,"created_at":"2026-10-08T10:41:47+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646911693142,"title":"Performance Cats","option1":"Performance Cats","option2":null,"option3":null,"sku":"3520H420","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"4615.28","grams":34019,"compare_at_price":null,"position":2,"product_id":11350218801494,"created_at":"2026-10-08T10:41:47+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646911725910,"title":"ULTRA GREEN Cats","option1":"ULTRA GREEN Cats","option2":null,"option3":null,"sku":"3520H430","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"5183.27","grams":34019,"compare_at_price":null,"position":3,"product_id":11350218801494,"created_at":"2026-10-08T10:41:47+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86449307615574,"created_at":"2026-10-08T10:41:47+01:00","position":1,"updated_at":"2026-10-08T10:41:52+01:00","product_id":11350218801494,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/d93d56e614509adc09cce58508a31fb7_226835fa-aa4e-4d75-99d6-8974d8e46d61.jpg?v=1791452512","width":3661,"height":2664},{"id":86449307648342,"created_at":"2026-10-08T10:41:47+01:00","position":2,"updated_at":"2026-10-08T10:41:50+01:00","product_id":11350218801494,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/b4ca767e3e64e51541fe3903ffba8bd1_50235c5a-a637-4b1d-bed9-c77eced278d6.jpg?v=1791452510","width":900,"height":601},{"id":86449307681110,"created_at":"2026-10-08T10:41:47+01:00","position":3,"updated_at":"2026-10-08T10:41:50+01:00","product_id":11350218801494,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/b4ca767e3e64e51541fe3903ffba8bd1_cc2bfb03-6915-4257-9e60-b47717f09e5e.jpg?v=1791452510","width":900,"height":601}],"options":[{"name":"Cat Type","position":1,"values":["Comp. Only","Performance Cats","ULTRA GREEN Cats"]}]},{"id":11350222504278,"title":"Kooks F-150 5.0 Header and Performance Y-Pipe Kit (2011-2014) | 1351H420","handle":"kooks-1351h420","body_html":"\u003ch2\u003eGive your Coyote F-150 a matched front exhaust upgrade\u003c\/h2\u003e\u003cp\u003eYour 5.0-litre F-150 has a V8 worth enjoying. This Kooks package pairs 1-7\/8\" long tube headers with a Performance-catted Y-pipe, bringing the front exhaust components together in one purchase and joining the OEM rear exhaust.\u003c\/p\u003e\u003cp\u003eSKU: 1351H420\u003c\/p\u003e\u003ch2\u003eHeaders and connections in one kit\u003c\/h2\u003e\u003cp\u003eThe stainless headers use 3\" collectors, feeding the supplied 3\" Y-pipe before its OEM rear connection. You can retain a compatible rear exhaust while changing the manifolds and front pipework together.\u003c\/p\u003e\u003ch2\u003eChoose it for a naturally aspirated Coyote\u003c\/h2\u003e\u003cp\u003eThe Performance cats suit a naturally aspirated engine. If your F-150 has a supercharger or turbocharger, choose a catalyst package specified for forced induction instead. This kit covers the listed 2011-2014 5.0-litre trims.\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\u003e2011-2014\u003c\/td\u003e\n\u003ctd\u003eFord F-150 Platinum\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1351H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011-2014\u003c\/td\u003e\n\u003ctd\u003eFord F-150 XL\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1351H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011-2014\u003c\/td\u003e\n\u003ctd\u003eFord F-150 Lariat\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1351H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011-2014\u003c\/td\u003e\n\u003ctd\u003eFord F-150 XLT\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1351H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011-2014\u003c\/td\u003e\n\u003ctd\u003eFord F-150 King Ranch\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1351H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011-2014\u003c\/td\u003e\n\u003ctd\u003eFord F-150 STX\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1351H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011-2014\u003c\/td\u003e\n\u003ctd\u003eFord F-150 FX4\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1351H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011-2014\u003c\/td\u003e\n\u003ctd\u003eFord F-150 FX2\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1351H420\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\u003e1351H420\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2011-2014 F-150 5.0L Coyote 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 pipework with OEM rear outlet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalyst condition\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated engines 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 kit include the front Y-pipe?\u003c\/h3\u003e\u003cp\u003eYes. The Performance-catted Y-pipe is included with the long tube headers.\u003c\/p\u003e\u003ch3\u003eWill it join my existing cat-back?\u003c\/h3\u003e\u003cp\u003eIt joins the OEM rear interface. A cat-back using that interface can remain in the installation.\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","published_at":"2026-10-09T13:34:06+01:00","created_at":"2026-10-08T10:42:09+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:ford-f-150","make:ford","type:header-kit"],"variants":[{"id":55646920671574,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"1351H420","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3529.82","grams":30391,"compare_at_price":null,"position":1,"product_id":11350222504278,"created_at":"2026-10-08T10:42:10+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86449353851222,"created_at":"2026-10-08T10:42:10+01:00","position":1,"updated_at":"2026-10-08T10:42:12+01:00","product_id":11350222504278,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/c2cb24b1d6e4a9da5e228fc9f46b57ad.jpg?v=1791452532","width":1730,"height":1155}],"options":[{"name":"Title","position":1,"values":["Default Title"]}]},{"id":11350216737110,"title":"Kooks Header Kits for Grand Cherokee SRT \/ Trackhawk \u0026 Durango SRT","handle":"kooks-2012-2020-grand-cherokee-durango-6-4l-6-2l-header-conn-kits-2cd7f88d","body_html":"\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","published_at":"2026-10-09T13:07:02+01:00","created_at":"2026-10-08T10:41:38+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:dodge-durango","fits:jeep-grand-cherokee","make:dodge","make:jeep","type:header-kit"],"variants":[{"id":55646907695446,"title":"1-7\/8\" \/ Comp. Only","option1":"1-7\/8\"","option2":"Comp. Only","option3":null,"sku":"3410H411","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3234.81","grams":27216,"compare_at_price":null,"position":1,"product_id":11350216737110,"created_at":"2026-10-08T10:41:39+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646907728214,"title":"1-7\/8\" \/ GREEN Cats","option1":"1-7\/8\"","option2":"GREEN Cats","option3":null,"sku":"3410H431","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"4086.79","grams":27216,"compare_at_price":null,"position":2,"product_id":11350216737110,"created_at":"2026-10-08T10:41:39+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646907760982,"title":"2\" \/ Comp. Only","option1":"2\"","option2":"Comp. Only","option3":null,"sku":"3410H611","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3349.54","grams":27216,"compare_at_price":null,"position":3,"product_id":11350216737110,"created_at":"2026-10-08T10:41:39+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646907793750,"title":"2\" \/ GREEN Cats","option1":"2\"","option2":"GREEN Cats","option3":null,"sku":"3410H631","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"4201.52","grams":27216,"compare_at_price":null,"position":4,"product_id":11350216737110,"created_at":"2026-10-08T10:41:39+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646907826518,"title":"2\" \/ H.O. GREEN Cats","option1":"2\"","option2":"H.O. GREEN Cats","option3":null,"sku":"3410H641","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"4722.18","grams":27216,"compare_at_price":null,"position":5,"product_id":11350216737110,"created_at":"2026-10-08T10:41:39+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86449295032662,"created_at":"2026-10-08T10:41:39+01:00","position":1,"updated_at":"2026-10-08T10:41:42+01:00","product_id":11350216737110,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/3b1499841e147f42e6db9ad2b7342d6b_e4e123b3-4587-4ae2-a6bc-af18d733ec18.jpg?v=1791452502","width":1500,"height":1500},{"id":86449295065430,"created_at":"2026-10-08T10:41:39+01:00","position":2,"updated_at":"2026-10-08T10:41:41+01:00","product_id":11350216737110,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/36d3340b762f207417fe96c9d62ef049_e037f74b-42ef-45bd-bc57-b50c2e2f92b3.jpg?v=1791452501","width":1500,"height":1500},{"id":86449295098198,"created_at":"2026-10-08T10:41:39+01:00","position":3,"updated_at":"2026-10-08T10:41:42+01:00","product_id":11350216737110,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/59a07b40deafca2a65c72e1cf94d0034_ce0124c6-4268-4afc-9532-0f1d06b0eb44.jpg?v=1791452502","width":1500,"height":1500},{"id":86449295130966,"created_at":"2026-10-08T10:41:39+01:00","position":4,"updated_at":"2026-10-08T10:41:42+01:00","product_id":11350216737110,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/51ae1720641e9340824957b02946fc0f_0c5679bf-e20c-47e2-8bd5-13639fd2ecdb.jpg?v=1791452502","width":800,"height":800},{"id":86449295163734,"created_at":"2026-10-08T10:41:39+01:00","position":5,"updated_at":"2026-10-08T10:41:41+01:00","product_id":11350216737110,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/51ae1720641e9340824957b02946fc0f_3dfc6437-f3a3-406d-b104-c12d65d6887e.jpg?v=1791452501","width":800,"height":800},{"id":86449295196502,"created_at":"2026-10-08T10:41:39+01:00","position":6,"updated_at":"2026-10-08T10:41:41+01:00","product_id":11350216737110,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/64974514b1185554d349ca8c5f50c5d3_9cfd01d2-6ebb-4760-a1c3-f1d4ff26c152.jpg?v=1791452501","width":1500,"height":1500}],"options":[{"name":"Header Size","position":1,"values":["1-7\/8\"","2\""]},{"name":"Cat Type","position":2,"values":["Comp. Only","GREEN Cats","H.O. GREEN Cats"]}]},{"id":11350214476118,"title":"Kooks HEMI 2-inch Street\/Strip Header and Connection Kit | 3103H6SS","handle":"kooks-2009-2023-dodge-charger-challenger-header-conn-kits-d02ada6d","body_html":"\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","published_at":"2026-10-09T13:39:21+01:00","created_at":"2026-10-08T10:41:29+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:chrysler-300","fits:dodge-challenger","fits:dodge-charger","fits:dodge-magnum","make:chrysler","make:dodge","type:header-kit"],"variants":[{"id":55646903304534,"title":"6.1L SRT8 \/ 6.4L 392 \/ 2\" \/ Street\/Strip","option1":"6.1L SRT8 \/ 6.4L 392","option2":"2\"","option3":"Street\/Strip","sku":"3103H6SS","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"4448.31","grams":36741,"compare_at_price":null,"position":1,"product_id":11350214476118,"created_at":"2026-10-08T10:41:29+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86449268621654,"created_at":"2026-10-08T10:41:29+01:00","position":1,"updated_at":"2026-10-08T10:41:31+01:00","product_id":11350214476118,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/6cf052d49aa930f5f80901510fd08786_018172f9-a270-4644-a7e7-ef3e8eb991fb.jpg?v=1791452491","width":1500,"height":1500},{"id":86449268654422,"created_at":"2026-10-08T10:41:29+01:00","position":2,"updated_at":"2026-10-08T10:41:31+01:00","product_id":11350214476118,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/c12aed676efefd8216a148abc22d9c4e_0b1f6e39-e179-4733-bbfe-a6aac852bfaa.jpg?v=1791452491","width":1500,"height":1500},{"id":86449268687190,"created_at":"2026-10-08T10:41:29+01:00","position":3,"updated_at":"2026-10-08T10:41:33+01:00","product_id":11350214476118,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/d6b6df92c7ccf8b4595eaa0c7bfc722c_afb5a23f-a4b9-431b-a298-002970269d1d.png?v=1791452493","width":6000,"height":3375},{"id":86449268719958,"created_at":"2026-10-08T10:41:29+01:00","position":4,"updated_at":"2026-10-08T10:41:31+01:00","product_id":11350214476118,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/61b925af91c014135a2afbeb1b3a6e18_e5d106d9-d9f4-4dd1-a51e-4e7002cae91b.jpg?v=1791452491","width":1500,"height":1500},{"id":86449268752726,"created_at":"2026-10-08T10:41:29+01:00","position":5,"updated_at":"2026-10-08T10:41:31+01:00","product_id":11350214476118,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/276340c7db98a179b00f1535a8af694e_6b0bdb66-66c9-416c-b32a-03164565b1d9.jpg?v=1791452491","width":1500,"height":1500},{"id":86449268785494,"created_at":"2026-10-08T10:41:29+01:00","position":6,"updated_at":"2026-10-08T10:41:31+01:00","product_id":11350214476118,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/de5b615c812bc350eb3f6b290a43f330_de926c0f-36c5-4821-9373-a1bb427dbb8b.jpg?v=1791452491","width":1500,"height":1500},{"id":86449268818262,"created_at":"2026-10-08T10:41:29+01:00","position":7,"updated_at":"2026-10-08T10:41:31+01:00","product_id":11350214476118,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/de5b615c812bc350eb3f6b290a43f330_819b8776-f848-424c-8b71-1d881fb283f0.jpg?v=1791452491","width":1500,"height":1500},{"id":86449268851030,"created_at":"2026-10-08T10:41:29+01:00","position":8,"updated_at":"2026-10-08T10:41:31+01:00","product_id":11350214476118,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/f91a12d5b408e475b1ed3ea170a06caa_4e37efcd-aaf2-4edc-bef2-73f7223d5152.jpg?v=1791452491","width":1500,"height":1500},{"id":86449268883798,"created_at":"2026-10-08T10:41:29+01:00","position":9,"updated_at":"2026-10-08T10:41:31+01:00","product_id":11350214476118,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/23b0ab28cc5d10c601b8f8e9307ec3ac_87c053dd-3b0a-4905-b3d3-05899cb263d2.jpg?v=1791452491","width":1500,"height":1500},{"id":86449268916566,"created_at":"2026-10-08T10:41:29+01:00","position":10,"updated_at":"2026-10-08T10:41:31+01:00","product_id":11350214476118,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/2582015507313f515fc403d9bb9a4892_889b0512-508a-41ab-8e7a-6e3cac4a996f.jpg?v=1791452491","width":1500,"height":1500},{"id":86449268949334,"created_at":"2026-10-08T10:41:29+01:00","position":11,"updated_at":"2026-10-08T10:41:31+01:00","product_id":11350214476118,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/1f504fe73dbdf36190ed1f236d36dfcd_fdd8bd38-1c4d-4c19-91b7-7fc799eb610a.jpg?v=1791452491","width":1500,"height":1500},{"id":86449268982102,"created_at":"2026-10-08T10:41:29+01:00","position":12,"updated_at":"2026-10-08T10:41:31+01:00","product_id":11350214476118,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/40a54c563c34a390dab9dde9fce1a4ec_cb0db1bc-3f76-40df-8fd4-7796dc9ab202.jpg?v=1791452491","width":1080,"height":1080}],"options":[{"name":"Vehicle Trim","position":1,"values":["6.1L SRT8 \/ 6.4L 392"]},{"name":"Header Size","position":2,"values":["2\""]},{"name":"Cat Type","position":3,"values":["Street\/Strip"]}]},{"id":11350223061334,"title":"Kooks Ford F-150 Coyote 5.0 Header and Y-Pipe Kits (2015-2020)","handle":"kooks-2015-2020-f150-5-0l-header-conn-kits","body_html":"\u003ch2\u003eGet more enjoyment from your 5.0 F-150\u003c\/h2\u003e\u003cp\u003eBring a matched Kooks front exhaust upgrade to your Coyote-powered F-150. These kits combine long tube headers with a Y-pipe to the OEM rear exhaust, offering 1-3\/4\" GREEN, 1-7\/8\" Performance and 1-7\/8\" GREEN configurations for the 2015-2020 truck.\u003c\/p\u003e\u003cp\u003eSKUs: 1361H230, 1361H420, 1361H430\u003c\/p\u003e\u003ch2\u003eChoose the package for your engine\u003c\/h2\u003e\u003cp\u003eThe 1-3\/4\" and 1-7\/8\" headers both use 3\" collectors. Choose the primary around your engine setup, then choose the catalyst for your intended use. Performance cats suit naturally aspirated builds; GREEN is the option here that supports forced induction.\u003c\/p\u003e\u003ch2\u003eA front upgrade that keeps the rear system\u003c\/h2\u003e\u003cp\u003eThe matching Y-pipe joins the OEM rear interface, letting you retain a compatible cat-back. Buying the headers and front pipework as a kit makes the conversion easier to plan, with the actual combinations and part numbers kept together in the comparison.\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\u003e1361H230\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-3\/4\"; Cat Type: GREEN Cats\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\u003e1361H420\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\u003e1361H430\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\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFitting your exhaust\u003c\/h2\u003e\u003cp\u003eOn 2018-on F-150s, the driver-side motor-mount heat shield should be removed or modified to give the header primaries enough clearance.\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\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eFord F-150 XLT\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1361H230, 1361H420, 1361H430\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\u003eFord F-150 King Ranch\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1361H230, 1361H420, 1361H430\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\u003eFord F-150 XL\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1361H230, 1361H420, 1361H430\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\u003eFord F-150 Platinum\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1361H230, 1361H420, 1361H430\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\u003eFord F-150 Lariat\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1361H230, 1361H420, 1361H430\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\u003e1361H230, 1361H420, 1361H430\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2015-2020 F-150 5.0L Coyote 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\" GREEN; 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\u003eSupplied Y-pipe\u003c\/td\u003e\n\u003ctd\u003eSelected catted version; OEM rear connection\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\u003e2018-on fitting provision\u003c\/td\u003e\n\u003ctd\u003eDriver-side motor-mount heat-shield removal or modification recommended for primary-tube 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\u003eAre these the kits for the 2021-on truck?\u003c\/h3\u003e\u003cp\u003eThese packages are for 2015-2020. The 2021-2026 F-150 kits are listed separately.\u003c\/p\u003e\u003ch3\u003eCan I choose a 1-3\/4-inch Performance kit here?\u003c\/h3\u003e\u003cp\u003eThe 1-3\/4\" option on this page uses GREEN cats. The Performance choice here has 1-7\/8\" headers.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003e1361H420: 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","published_at":"2026-10-09T13:33:46+01:00","created_at":"2026-10-08T10:42:18+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:ford-f-150","make:ford","type:header-kit"],"variants":[{"id":55646922211670,"title":"1-3\/4\" \/ GREEN Cats","option1":"1-3\/4\"","option2":"GREEN Cats","option3":null,"sku":"1361H230","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3888.33","grams":30391,"compare_at_price":null,"position":1,"product_id":11350223061334,"created_at":"2026-10-08T10:42:18+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646922244438,"title":"1-7\/8\" \/ Performance Cats","option1":"1-7\/8\"","option2":"Performance Cats","option3":null,"sku":"1361H420","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3394.99","grams":30391,"compare_at_price":null,"position":2,"product_id":11350223061334,"created_at":"2026-10-08T10:42:18+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646922277206,"title":"1-7\/8\" \/ GREEN Cats","option1":"1-7\/8\"","option2":"GREEN Cats","option3":null,"sku":"1361H430","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3962.98","grams":30391,"compare_at_price":null,"position":3,"product_id":11350223061334,"created_at":"2026-10-08T10:42:18+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86449370759510,"created_at":"2026-10-08T10:42:18+01:00","position":1,"updated_at":"2026-10-08T10:42:21+01:00","product_id":11350223061334,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/cf4e31655a574524950b8d8fa6e03705_48d4863e-e7d6-4f47-b7c3-b06ce71abd3a.jpg?v=1791452541","width":1730,"height":1155},{"id":86449370792278,"created_at":"2026-10-08T10:42:18+01:00","position":2,"updated_at":"2026-10-08T10:42:21+01:00","product_id":11350223061334,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/cf4e31655a574524950b8d8fa6e03705_f611a382-7dbe-4212-a95c-8d736d85d242.jpg?v=1791452541","width":1730,"height":1155},{"id":86449370825046,"created_at":"2026-10-08T10:42:18+01:00","position":3,"updated_at":"2026-10-08T10:42:21+01:00","product_id":11350223061334,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/cf4e31655a574524950b8d8fa6e03705_60b12edf-8e78-4bf9-af25-6a78bc37c51b.jpg?v=1791452541","width":1730,"height":1155}],"options":[{"name":"Header Size","position":1,"values":["1-3\/4\"","1-7\/8\""]},{"name":"Cat Type","position":2,"values":["GREEN Cats","Performance Cats"]}]},{"id":11350221881686,"title":"Kooks Chevrolet SSR Header and Performance Y-Pipe Kit (2003-2006) | 2730H420","handle":"kooks-2730h420","body_html":"\u003ch2\u003eLet your SSR sound as distinctive as it looks\u003c\/h2\u003e\u003cp\u003eGive your SSR a coordinated front exhaust upgrade with Kooks 1-7\/8\" long tube headers and a Performance-catted Y-pipe. The kit covers the listed 5.3-litre LM4 and 6.0-litre LS2 applications, connecting to the OEM rear exhaust.\u003c\/p\u003e\u003cp\u003eSKU: 2730H420\u003c\/p\u003e\u003ch2\u003eA package for both SSR V8 applications\u003c\/h2\u003e\u003cp\u003eThe stainless headers use 3\" collectors and the supplied Y-pipe has 3\" front pipework with an OEM outlet. The fitment table separates the 2003-2004 5.3 from the 2005-2006 6.0, keeping the year and engine details easy to find.\u003c\/p\u003e\u003ch2\u003eRetain a compatible rear exhaust\u003c\/h2\u003e\u003cp\u003eThe OEM rear interface lets a compatible cat-back remain in place. The supplied Performance cats suit naturally aspirated engines, so choose a different catalyst arrangement if your SSR is running forced induction.\u003c\/p\u003e\u003ch2\u003eFitting your exhaust\u003c\/h2\u003e\u003cp\u003eInstallation includes removal of the original starter heat shield.\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\u003e2003-2004\u003c\/td\u003e\n\u003ctd\u003eChevrolet SSR Base\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2730H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2005-2006\u003c\/td\u003e\n\u003ctd\u003eChevrolet SSR Base\u003c\/td\u003e\n\u003ctd\u003e6.0L V8\u003c\/td\u003e\n\u003ctd\u003e2730H420\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\u003e2730H420\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplications\u003c\/td\u003e\n\u003ctd\u003e2003-2004 SSR LM4 5.3L; 2005-2006 SSR 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\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\u003eFitting change\u003c\/td\u003e\n\u003ctd\u003eOriginal starter 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\u003eDoes it cover both SSR engine sizes?\u003c\/h3\u003e\u003cp\u003eYes, for the years shown: 5.3 litres in 2003-2004 and 6.0 litres in 2005-2006.\u003c\/p\u003e\u003ch3\u003eIs the rear exhaust included?\u003c\/h3\u003e\u003cp\u003eThe kit 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","published_at":"2026-10-09T13:34:25+01:00","created_at":"2026-10-08T10:42:04+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:chevrolet-ssr","make:chevrolet","type:header-kit"],"variants":[{"id":55646919426390,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"2730H420","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3302.10","grams":24948,"compare_at_price":null,"position":1,"product_id":11350221881686,"created_at":"2026-10-08T10:42:04+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86449346806102,"created_at":"2026-10-08T10:42:04+01:00","position":1,"updated_at":"2026-10-08T10:42:07+01:00","product_id":11350221881686,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/8fa9426497bf2af12d6d78b7a47dc932.jpg?v=1791452527","width":1500,"height":1500},{"id":86449346838870,"created_at":"2026-10-08T10:42:04+01:00","position":2,"updated_at":"2026-10-08T10:42:07+01:00","product_id":11350221881686,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/1c4103ca723c9b9d9b5f21e1f779c258_8c839c8e-3e58-4ec9-9048-106194771129.jpg?v=1791452527","width":1500,"height":1500}],"options":[{"name":"Title","position":1,"values":["Default Title"]}]},{"id":11350218539350,"title":"Kooks Cadillac CT5-V Blackwing Header and Exhaust Kits (2022-2026)","handle":"kooks-2022-2026-cadillac-ct5-v-blackwing-header-exhaust-kits","body_html":"\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","published_at":"2026-10-09T13:36:35+01:00","created_at":"2026-10-08T10:41:46+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:cadillac-ct5-v-blackwing","make:cadillac","type:header-kit"],"variants":[{"id":55646910841174,"title":"1-7\/8\" \/ Competition Only","option1":"1-7\/8\"","option2":"Competition Only","option3":null,"sku":"2313F412","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3166.34","grams":53524,"compare_at_price":null,"position":1,"product_id":11350218539350,"created_at":"2026-10-08T10:41:46+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646910873942,"title":"1-7\/8\" \/ GREEN Cats","option1":"1-7\/8\"","option2":"GREEN Cats","option3":null,"sku":"2313F432","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"4018.32","grams":53524,"compare_at_price":null,"position":2,"product_id":11350218539350,"created_at":"2026-10-08T10:41:46+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646910906710,"title":"2\" \/ Competition Only","option1":"2\"","option2":"Competition Only","option3":null,"sku":"2313F612","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3204.66","grams":53524,"compare_at_price":null,"position":3,"product_id":11350218539350,"created_at":"2026-10-08T10:41:46+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646910939478,"title":"2\" \/ GREEN Cats","option1":"2\"","option2":"GREEN Cats","option3":null,"sku":"2313F632","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"4056.64","grams":53524,"compare_at_price":null,"position":4,"product_id":11350218539350,"created_at":"2026-10-08T10:41:46+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86449304895830,"created_at":"2026-10-08T10:41:46+01:00","position":1,"updated_at":"2026-10-08T10:41:49+01:00","product_id":11350218539350,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/d7e38ba648a1e7f990af04b17f128fd8_601bd48d-1f41-4a97-bbbd-2c8746f5173f.jpg?v=1791452509","width":2300,"height":1327},{"id":86449304928598,"created_at":"2026-10-08T10:41:46+01:00","position":2,"updated_at":"2026-10-08T10:41:49+01:00","product_id":11350218539350,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/d7e38ba648a1e7f990af04b17f128fd8_6f82769a-9382-4645-af1a-ca0afc10d419.jpg?v=1791452509","width":2300,"height":1327},{"id":86449304961366,"created_at":"2026-10-08T10:41:46+01:00","position":3,"updated_at":"2026-10-08T10:41:48+01:00","product_id":11350218539350,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/4cfaeb5e84fac62d38a7308c16788c93_7ab434cf-d5c0-4808-bd9d-43ccdca23cd5.jpg?v=1791452508","width":2300,"height":1024},{"id":86449304994134,"created_at":"2026-10-08T10:41:46+01:00","position":4,"updated_at":"2026-10-08T10:41:48+01:00","product_id":11350218539350,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/4cfaeb5e84fac62d38a7308c16788c93_9d46216a-cfb5-4334-81e9-28d3914929dd.jpg?v=1791452508","width":2300,"height":1024}],"options":[{"name":"Header Size","position":1,"values":["1-7\/8\"","2\""]},{"name":"Cat Type","position":2,"values":["Competition Only","GREEN Cats"]}]},{"id":11350212051286,"title":"Kooks Header and Connection Kits for Dodge \/ Chrysler 6.1 \u0026 6.4 HEMI","handle":"kooks-2009-2023-dodge-charger-challenger-header-conn-kits-1fbc7b5d","body_html":"\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","published_at":"2026-10-09T13:06:58+01:00","created_at":"2026-10-08T10:41:20+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:chrysler-300","fits:dodge-challenger","fits:dodge-charger","fits:dodge-magnum","make:chrysler","make:dodge","type:header-kit"],"variants":[{"id":55646900388182,"title":"6.1L SRT8 \/ 6.4L 392 \/ 1-7\/8\" \/ Competition Only","option1":"6.1L SRT8 \/ 6.4L 392","option2":"1-7\/8\"","option3":"Competition Only","sku":"3101H410","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"2720.25","grams":27216,"compare_at_price":null,"position":1,"product_id":11350212051286,"created_at":"2026-10-08T10:41:20+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646900420950,"title":"6.1L SRT8 \/ 6.4L 392 \/ 1-7\/8\" \/ Performance Cats","option1":"6.1L SRT8 \/ 6.4L 392","option2":"1-7\/8\"","option3":"Performance Cats","sku":"3101H420","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3004.25","grams":27216,"compare_at_price":null,"position":2,"product_id":11350212051286,"created_at":"2026-10-08T10:41:20+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646900453718,"title":"6.1L SRT8 \/ 6.4L 392 \/ 1-7\/8\" \/ GREEN Cats","option1":"6.1L SRT8 \/ 6.4L 392","option2":"1-7\/8\"","option3":"GREEN Cats","sku":"3101H430","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3572.23","grams":29484,"compare_at_price":null,"position":3,"product_id":11350212051286,"created_at":"2026-10-08T10:41:20+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646900486486,"title":"6.1L SRT8 \/ 6.4L 392 \/ 2\" \/ GREEN Cats","option1":"6.1L SRT8 \/ 6.4L 392","option2":"2\"","option3":"GREEN Cats","sku":"3101H630","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3775.64","grams":29484,"compare_at_price":null,"position":4,"product_id":11350212051286,"created_at":"2026-10-08T10:41:20+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646900519254,"title":"6.1L SRT8 \/ 6.4L 392 \/ 2\" \/ H.O. GREEN Cats","option1":"6.1L SRT8 \/ 6.4L 392","option2":"2\"","option3":"H.O. GREEN Cats","sku":"3101H640","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"4296.29","grams":30844,"compare_at_price":null,"position":5,"product_id":11350212051286,"created_at":"2026-10-08T10:41:20+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86449232118102,"created_at":"2026-10-08T10:41:20+01:00","position":1,"updated_at":"2026-10-08T10:41:23+01:00","product_id":11350212051286,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/6cf052d49aa930f5f80901510fd08786_bb89f2a4-022e-4c39-bcc8-de99bcc439f0.jpg?v=1791452483","width":1500,"height":1500},{"id":86449232150870,"created_at":"2026-10-08T10:41:20+01:00","position":2,"updated_at":"2026-10-08T10:41:23+01:00","product_id":11350212051286,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/c12aed676efefd8216a148abc22d9c4e_8e1a0e4f-6f59-4756-b74a-2483f2ff01cd.jpg?v=1791452483","width":1500,"height":1500},{"id":86449232183638,"created_at":"2026-10-08T10:41:20+01:00","position":3,"updated_at":"2026-10-08T10:41:29+01:00","product_id":11350212051286,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/d6b6df92c7ccf8b4595eaa0c7bfc722c_77c5a9f6-054d-46bc-84b5-a9532373da36.png?v=1791452489","width":6000,"height":3375},{"id":86449232216406,"created_at":"2026-10-08T10:41:20+01:00","position":4,"updated_at":"2026-10-08T10:41:23+01:00","product_id":11350212051286,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/61b925af91c014135a2afbeb1b3a6e18_37e026c8-42f1-444b-a8e8-6a17c7043ce7.jpg?v=1791452483","width":1500,"height":1500},{"id":86449232249174,"created_at":"2026-10-08T10:41:20+01:00","position":5,"updated_at":"2026-10-08T10:41:23+01:00","product_id":11350212051286,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/276340c7db98a179b00f1535a8af694e_6f49e513-4969-4c14-9033-6ea2c45c7963.jpg?v=1791452483","width":1500,"height":1500},{"id":86449232281942,"created_at":"2026-10-08T10:41:20+01:00","position":6,"updated_at":"2026-10-08T10:41:24+01:00","product_id":11350212051286,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/de5b615c812bc350eb3f6b290a43f330_8fedcbc1-d6dc-4f22-a28b-142ceee536cd.jpg?v=1791452484","width":1500,"height":1500},{"id":86449232314710,"created_at":"2026-10-08T10:41:20+01:00","position":7,"updated_at":"2026-10-08T10:41:24+01:00","product_id":11350212051286,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/de5b615c812bc350eb3f6b290a43f330_63685bce-9f6d-4545-a951-ca8462f0e54f.jpg?v=1791452484","width":1500,"height":1500},{"id":86449232347478,"created_at":"2026-10-08T10:41:20+01:00","position":8,"updated_at":"2026-10-08T10:41:24+01:00","product_id":11350212051286,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/f91a12d5b408e475b1ed3ea170a06caa_73e8baec-25e9-43a0-9424-ccc2cbee7213.jpg?v=1791452484","width":1500,"height":1500},{"id":86449232380246,"created_at":"2026-10-08T10:41:20+01:00","position":9,"updated_at":"2026-10-08T10:41:23+01:00","product_id":11350212051286,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/23b0ab28cc5d10c601b8f8e9307ec3ac_c86eae33-b247-4c95-b4ee-a3481bd6c11a.jpg?v=1791452483","width":1500,"height":1500},{"id":86449232413014,"created_at":"2026-10-08T10:41:20+01:00","position":10,"updated_at":"2026-10-08T10:41:23+01:00","product_id":11350212051286,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/2582015507313f515fc403d9bb9a4892_92fa4c00-b8fd-4593-9a5c-87bf9839aef4.jpg?v=1791452483","width":1500,"height":1500},{"id":86449232445782,"created_at":"2026-10-08T10:41:20+01:00","position":11,"updated_at":"2026-10-08T10:41:23+01:00","product_id":11350212051286,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/1f504fe73dbdf36190ed1f236d36dfcd_30b42964-3a8d-47a3-befa-649a628bb014.jpg?v=1791452483","width":1500,"height":1500},{"id":86449232478550,"created_at":"2026-10-08T10:41:20+01:00","position":12,"updated_at":"2026-10-08T10:41:23+01:00","product_id":11350212051286,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/40a54c563c34a390dab9dde9fce1a4ec_cd5bb8a0-1ddd-4ace-bc23-0dfee5006e39.jpg?v=1791452483","width":1080,"height":1080}],"options":[{"name":"Vehicle Trim","position":1,"values":["6.1L SRT8 \/ 6.4L 392"]},{"name":"Header Size","position":2,"values":["1-7\/8\"","2\""]},{"name":"Cat Type","position":3,"values":["Competition Only","Performance Cats","GREEN Cats","H.O. GREEN Cats"]}]},{"id":11350214148438,"title":"Kooks Hellcat 2-inch H.O. GREEN Header Kit with Full 3-inch Outlets | 3103H641","handle":"kooks-2009-2023-dodge-charger-challenger-header-conn-kits-057be65b","body_html":"\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","published_at":"2026-10-09T13:39:29+01:00","created_at":"2026-10-08T10:41:28+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:chrysler-300","fits:dodge-challenger","fits:dodge-charger","fits:dodge-magnum","make:chrysler","make:dodge","type:header-kit"],"variants":[{"id":55646903042390,"title":"6.2L Hellcat \/ 2\" \/ H.O. GREEN Cats (3\" Outlet)","option1":"6.2L Hellcat","option2":"2\"","option3":"H.O. GREEN Cats (3\" Outlet)","sku":"3103H641","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"4269.98","grams":29484,"compare_at_price":null,"position":1,"product_id":11350214148438,"created_at":"2026-10-08T10:41:28+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86449267507542,"created_at":"2026-10-08T10:41:28+01:00","position":1,"updated_at":"2026-10-08T10:41:30+01:00","product_id":11350214148438,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/6cf052d49aa930f5f80901510fd08786_699ccb3b-8724-4e48-b044-cb0433ce9ff4.jpg?v=1791452490","width":1500,"height":1500},{"id":86449267540310,"created_at":"2026-10-08T10:41:28+01:00","position":2,"updated_at":"2026-10-08T10:41:30+01:00","product_id":11350214148438,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/c12aed676efefd8216a148abc22d9c4e_79fbc6c5-e6f0-4c48-9cf5-9c65be41c86c.jpg?v=1791452490","width":1500,"height":1500},{"id":86449267573078,"created_at":"2026-10-08T10:41:28+01:00","position":3,"updated_at":"2026-10-08T10:41:33+01:00","product_id":11350214148438,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/d6b6df92c7ccf8b4595eaa0c7bfc722c_bbf8b641-f6f1-48c8-a79b-ad9a564946d7.png?v=1791452493","width":6000,"height":3375},{"id":86449267605846,"created_at":"2026-10-08T10:41:28+01:00","position":4,"updated_at":"2026-10-08T10:41:30+01:00","product_id":11350214148438,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/61b925af91c014135a2afbeb1b3a6e18_07a7bd2e-f36b-432e-8f7b-94de7b04f6cf.jpg?v=1791452490","width":1500,"height":1500},{"id":86449267638614,"created_at":"2026-10-08T10:41:28+01:00","position":5,"updated_at":"2026-10-08T10:41:30+01:00","product_id":11350214148438,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/276340c7db98a179b00f1535a8af694e_9d9f54b3-4636-44ac-8e95-28907720c4da.jpg?v=1791452490","width":1500,"height":1500},{"id":86449267671382,"created_at":"2026-10-08T10:41:28+01:00","position":6,"updated_at":"2026-10-08T10:41:31+01:00","product_id":11350214148438,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/de5b615c812bc350eb3f6b290a43f330_0cbc35a9-fdbb-4177-85a2-4f650ca1f7e0.jpg?v=1791452491","width":1500,"height":1500},{"id":86449267704150,"created_at":"2026-10-08T10:41:28+01:00","position":7,"updated_at":"2026-10-08T10:41:30+01:00","product_id":11350214148438,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/de5b615c812bc350eb3f6b290a43f330_f33f9cbb-65c1-47d5-8724-37040d956f14.jpg?v=1791452490","width":1500,"height":1500},{"id":86449267736918,"created_at":"2026-10-08T10:41:28+01:00","position":8,"updated_at":"2026-10-08T10:41:30+01:00","product_id":11350214148438,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/f91a12d5b408e475b1ed3ea170a06caa_acc5e3ba-58fa-462b-b56a-5fceb9e38fb6.jpg?v=1791452490","width":1500,"height":1500},{"id":86449267769686,"created_at":"2026-10-08T10:41:28+01:00","position":9,"updated_at":"2026-10-08T10:41:30+01:00","product_id":11350214148438,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/23b0ab28cc5d10c601b8f8e9307ec3ac_e3aee161-99b4-41bd-b5c6-2e8daa2a3d46.jpg?v=1791452490","width":1500,"height":1500},{"id":86449267802454,"created_at":"2026-10-08T10:41:28+01:00","position":10,"updated_at":"2026-10-08T10:41:30+01:00","product_id":11350214148438,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/2582015507313f515fc403d9bb9a4892_9079c801-2231-4366-a812-56f757c46a8b.jpg?v=1791452490","width":1500,"height":1500},{"id":86449267835222,"created_at":"2026-10-08T10:41:28+01:00","position":11,"updated_at":"2026-10-08T10:41:30+01:00","product_id":11350214148438,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/1f504fe73dbdf36190ed1f236d36dfcd_475719d7-2b21-4ce0-90f5-03706ebc5da7.jpg?v=1791452490","width":1500,"height":1500},{"id":86449267867990,"created_at":"2026-10-08T10:41:28+01:00","position":12,"updated_at":"2026-10-08T10:41:30+01:00","product_id":11350214148438,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/40a54c563c34a390dab9dde9fce1a4ec_e17047c0-bc18-4875-840b-cb8058902655.jpg?v=1791452490","width":1080,"height":1080}],"options":[{"name":"Vehicle Trim","position":1,"values":["6.2L Hellcat"]},{"name":"Header Size","position":2,"values":["2\""]},{"name":"Cat Type","position":3,"values":["H.O. GREEN Cats (3\" Outlet)"]}]},{"id":11350215557462,"title":"Kooks Grand Cherokee SRT8 6.1 Header Kit (2006-2010) | 3400H420","handle":"kooks-2006-2010-jeep-wk1-grand-cherokee-srt8-header-conn-kits","body_html":"\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","published_at":"2026-10-09T13:38:36+01:00","created_at":"2026-10-08T10:41:33+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:jeep-grand-cherokee","make:jeep","type:header-kit"],"variants":[{"id":55646904779094,"title":"Performance Cats","option1":"Performance Cats","option2":null,"option3":null,"sku":"3400H420","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3381.26","grams":27216,"compare_at_price":null,"position":1,"product_id":11350215557462,"created_at":"2026-10-08T10:41:33+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86449277174102,"created_at":"2026-10-08T10:41:33+01:00","position":1,"updated_at":"2026-10-08T10:41:36+01:00","product_id":11350215557462,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/c27e4d9e685c9114f11c13c1ce761d48_d3b628b7-33a3-423b-b879-6652bcffee90.jpg?v=1791452496","width":2397,"height":1600},{"id":86449277206870,"created_at":"2026-10-08T10:41:33+01:00","position":2,"updated_at":"2026-10-08T10:41:36+01:00","product_id":11350215557462,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/edfec6be4e0f083fd2bd9fe64427b1de_3c46984d-2e99-4dd6-bc2a-a0c434da9d3f.jpg?v=1791452496","width":1500,"height":1500}],"options":[{"name":"Cat Type","position":1,"values":["Performance Cats"]}]},{"id":11350213591382,"title":"Kooks Hellcat 2-inch GREEN Header and OEM Connection Kit | 3103H630","handle":"kooks-2009-2023-dodge-charger-challenger-header-conn-kits-d1937168","body_html":"\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","published_at":"2026-10-09T13:39:49+01:00","created_at":"2026-10-08T10:41:26+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:dodge-challenger","fits:dodge-charger","make:dodge","type:header-kit"],"variants":[{"id":55646902288726,"title":"6.2L Hellcat \/ 2\" \/ GREEN Cats","option1":"6.2L Hellcat","option2":"2\"","option3":"GREEN Cats","sku":"3103H630","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3700.94","grams":29484,"compare_at_price":null,"position":1,"product_id":11350213591382,"created_at":"2026-10-08T10:41:26+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86449257775446,"created_at":"2026-10-08T10:41:26+01:00","position":1,"updated_at":"2026-10-08T10:41:28+01:00","product_id":11350213591382,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/6cf052d49aa930f5f80901510fd08786_9abca70e-5453-4e7c-9986-07d5b2721268.jpg?v=1791452488","width":1500,"height":1500},{"id":86449257808214,"created_at":"2026-10-08T10:41:26+01:00","position":2,"updated_at":"2026-10-08T10:41:28+01:00","product_id":11350213591382,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/c12aed676efefd8216a148abc22d9c4e_0c1716eb-ea5f-45b4-b15e-b278798e87f1.jpg?v=1791452488","width":1500,"height":1500},{"id":86449257840982,"created_at":"2026-10-08T10:41:26+01:00","position":3,"updated_at":"2026-10-08T10:41:31+01:00","product_id":11350213591382,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/d6b6df92c7ccf8b4595eaa0c7bfc722c_d8cdb698-3744-4105-a991-f8ed55e6d7ac.png?v=1791452491","width":6000,"height":3375},{"id":86449257873750,"created_at":"2026-10-08T10:41:26+01:00","position":4,"updated_at":"2026-10-08T10:41:28+01:00","product_id":11350213591382,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/61b925af91c014135a2afbeb1b3a6e18_f05d4773-ecf2-4fca-82d1-3766515512d9.jpg?v=1791452488","width":1500,"height":1500},{"id":86449257906518,"created_at":"2026-10-08T10:41:26+01:00","position":5,"updated_at":"2026-10-08T10:41:29+01:00","product_id":11350213591382,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/276340c7db98a179b00f1535a8af694e_a7f8122b-838a-4219-bce2-81644fa1074f.jpg?v=1791452489","width":1500,"height":1500},{"id":86449257939286,"created_at":"2026-10-08T10:41:26+01:00","position":6,"updated_at":"2026-10-08T10:41:29+01:00","product_id":11350213591382,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/de5b615c812bc350eb3f6b290a43f330_50662d75-a99b-4193-9fb6-4c7b1452f3be.jpg?v=1791452489","width":1500,"height":1500},{"id":86449257972054,"created_at":"2026-10-08T10:41:26+01:00","position":7,"updated_at":"2026-10-08T10:41:29+01:00","product_id":11350213591382,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/de5b615c812bc350eb3f6b290a43f330_0e51677b-bd8b-462b-8277-5fddc93916bb.jpg?v=1791452489","width":1500,"height":1500},{"id":86449258004822,"created_at":"2026-10-08T10:41:26+01:00","position":8,"updated_at":"2026-10-08T10:41:28+01:00","product_id":11350213591382,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/f91a12d5b408e475b1ed3ea170a06caa_a4f6c557-ef3f-4beb-bb27-a50de85c8dfd.jpg?v=1791452488","width":1500,"height":1500},{"id":86449258037590,"created_at":"2026-10-08T10:41:26+01:00","position":9,"updated_at":"2026-10-08T10:41:28+01:00","product_id":11350213591382,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/23b0ab28cc5d10c601b8f8e9307ec3ac_1a589619-e92c-4633-bfa1-97328930ece7.jpg?v=1791452488","width":1500,"height":1500},{"id":86449258070358,"created_at":"2026-10-08T10:41:26+01:00","position":10,"updated_at":"2026-10-08T10:41:29+01:00","product_id":11350213591382,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/2582015507313f515fc403d9bb9a4892_7855dc12-d720-43c8-b93a-c380ee9a6daa.jpg?v=1791452489","width":1500,"height":1500},{"id":86449258103126,"created_at":"2026-10-08T10:41:26+01:00","position":11,"updated_at":"2026-10-08T10:41:28+01:00","product_id":11350213591382,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/1f504fe73dbdf36190ed1f236d36dfcd_2d033257-83f3-41d0-94ec-975339025fd8.jpg?v=1791452488","width":1500,"height":1500},{"id":86449258135894,"created_at":"2026-10-08T10:41:26+01:00","position":12,"updated_at":"2026-10-08T10:41:29+01:00","product_id":11350213591382,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/40a54c563c34a390dab9dde9fce1a4ec_fc7bb5d8-2b39-4570-adc1-23bd8433e25c.jpg?v=1791452489","width":1080,"height":1080}],"options":[{"name":"Vehicle Trim","position":1,"values":["6.2L Hellcat"]},{"name":"Header Size","position":2,"values":["2\""]},{"name":"Cat Type","position":3,"values":["GREEN Cats"]}]},{"id":11350218965334,"title":"Kooks Pontiac GTO LS1 Header Kit (2004) | 2411H420","handle":"kooks-2411h420","body_html":"\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","published_at":"2026-10-09T13:36:19+01:00","created_at":"2026-10-08T10:41:48+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:pontiac-gto","make:pontiac","type:header-kit"],"variants":[{"id":55646911955286,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"2411H420","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"2812.29","grams":34927,"compare_at_price":null,"position":1,"product_id":11350218965334,"created_at":"2026-10-08T10:41:48+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86449312399702,"created_at":"2026-10-08T10:41:48+01:00","position":1,"updated_at":"2026-10-08T10:41:51+01:00","product_id":11350218965334,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/e438ffb42ad74d08c6ccea72b48048e4_ff2da541-8278-4b9b-9dc5-784eb277eb4a.jpg?v=1791452511","width":1500,"height":1500},{"id":86449312432470,"created_at":"2026-10-08T10:41:48+01:00","position":2,"updated_at":"2026-10-08T10:41:51+01:00","product_id":11350218965334,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/fd3290e99c35b6374ccc629e8da56ed2_6630a17b-2771-44b4-b5a2-4b9d8bbcfdad.jpg?v=1791452511","width":1500,"height":1500}],"options":[{"name":"Title","position":1,"values":["Default Title"]}]},{"id":11350215754070,"title":"Kooks Header and Connection Kits for Camaro SS \/ ZL1 (2016-2024)","handle":"kooks-2016-2024-camaro-ss-zl1-header-conn-kits-4bf9ee46","body_html":"\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","published_at":"2026-10-09T13:07:00+01:00","created_at":"2026-10-08T10:41:34+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:chevrolet-camaro","make:chevrolet","type:header-kit"],"variants":[{"id":55646905205078,"title":"1-7\/8\" \/ Comp. Only","option1":"1-7\/8\"","option2":"Comp. Only","option3":null,"sku":"2260H410","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"2241.45","grams":22680,"compare_at_price":null,"position":1,"product_id":11350215754070,"created_at":"2026-10-08T10:41:34+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646905237846,"title":"1-7\/8\" \/ GREEN Cats","option1":"1-7\/8\"","option2":"GREEN Cats","option3":null,"sku":"2260H430","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3093.43","grams":22680,"compare_at_price":null,"position":2,"product_id":11350215754070,"created_at":"2026-10-08T10:41:34+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646905270614,"title":"2\" \/ GREEN Cats","option1":"2\"","option2":"GREEN Cats","option3":null,"sku":"2260H630","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3280.21","grams":22680,"compare_at_price":null,"position":3,"product_id":11350215754070,"created_at":"2026-10-08T10:41:34+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646905303382,"title":"2\" \/ H.O. GREEN Cats","option1":"2\"","option2":"H.O. GREEN Cats","option3":null,"sku":"2260H640","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3800.86","grams":22680,"compare_at_price":null,"position":4,"product_id":11350215754070,"created_at":"2026-10-08T10:41:34+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646905336150,"title":"2\" \/ Street\/Strip","option1":"2\"","option2":"Street\/Strip","option3":null,"sku":"2260H6SS","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3991.55","grams":24948,"compare_at_price":null,"position":5,"product_id":11350215754070,"created_at":"2026-10-08T10:41:34+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86449279140182,"created_at":"2026-10-08T10:41:34+01:00","position":1,"updated_at":"2026-10-08T10:41:37+01:00","product_id":11350215754070,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/f3954f41cef927cecdc1cbaddffbbfc5_34248bd5-9fed-4ef1-b3f5-e80d49c63ea2.jpg?v=1791452497","width":1600,"height":1600},{"id":86449279172950,"created_at":"2026-10-08T10:41:34+01:00","position":2,"updated_at":"2026-10-08T10:41:38+01:00","product_id":11350215754070,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/6b6b15a8cedcb92f610157bb0548b7e1_22e22e09-f5cf-45fc-8c3a-8901263dd03e.jpg?v=1791452498","width":1600,"height":1600},{"id":86449279205718,"created_at":"2026-10-08T10:41:34+01:00","position":3,"updated_at":"2026-10-08T10:41:37+01:00","product_id":11350215754070,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/01ba491de7dd95b89cf9aa4cdfc74289_be3ecf75-7b6d-4916-9065-2375046c6dac.jpg?v=1791452497","width":1600,"height":1600},{"id":86449279238486,"created_at":"2026-10-08T10:41:34+01:00","position":4,"updated_at":"2026-10-08T10:41:38+01:00","product_id":11350215754070,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/afa08e3faa4fd6e3a63f91c2e7e162ed_4646105a-46f9-455e-9891-4ae0687b58e4.jpg?v=1791452498","width":5052,"height":5052},{"id":86449279271254,"created_at":"2026-10-08T10:41:34+01:00","position":5,"updated_at":"2026-10-08T10:41:38+01:00","product_id":11350215754070,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/481d4417efc0ea7b50e7cfd456596587_959c4d89-8642-434a-91ef-20f48e26cb60.png?v=1791452498","width":1080,"height":1080},{"id":86449279304022,"created_at":"2026-10-08T10:41:34+01:00","position":6,"updated_at":"2026-10-08T10:41:37+01:00","product_id":11350215754070,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/4be87bb71bd1d6ab67cc1e260687123c_300f077e-521d-4547-a4a3-ad5b6366afaa.jpg?v=1791452497","width":1600,"height":1600}],"options":[{"name":"Header Size","position":1,"values":["1-7\/8\"","2\""]},{"name":"Cat Type","position":2,"values":["Comp. Only","GREEN Cats","H.O. GREEN Cats","Street\/Strip"]}]},{"id":11350217752918,"title":"Kooks Cadillac CTS-V LT4 Header Kits (2016-2019)","handle":"kooks-2016-2019-cadillac-cts-v-header-conn-kits","body_html":"\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","published_at":"2026-10-09T13:37:04+01:00","created_at":"2026-10-08T10:41:43+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:cadillac-cts","make:cadillac","type:header-kit"],"variants":[{"id":55646909595990,"title":"1-7\/8\" \/ Comp. Only","option1":"1-7\/8\"","option2":"Comp. Only","option3":null,"sku":"2312H410","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"2059.61","grams":18144,"compare_at_price":null,"position":1,"product_id":11350217752918,"created_at":"2026-10-08T10:41:43+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646909628758,"title":"1-7\/8\" \/ GREEN Cats","option1":"1-7\/8\"","option2":"GREEN Cats","option3":null,"sku":"2312H430","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"2911.59","grams":20412,"compare_at_price":null,"position":2,"product_id":11350217752918,"created_at":"2026-10-08T10:41:43+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646909661526,"title":"2\" \/ Comp. Only","option1":"2\"","option2":"Comp. Only","option3":null,"sku":"2312H610","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"2207.90","grams":18144,"compare_at_price":null,"position":3,"product_id":11350217752918,"created_at":"2026-10-08T10:41:43+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646909694294,"title":"2\" \/ GREEN Cats","option1":"2\"","option2":"GREEN Cats","option3":null,"sku":"2312H630","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3059.88","grams":20412,"compare_at_price":null,"position":4,"product_id":11350217752918,"created_at":"2026-10-08T10:41:43+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86449302307158,"created_at":"2026-10-08T10:41:43+01:00","position":1,"updated_at":"2026-10-08T10:41:46+01:00","product_id":11350217752918,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/688a7dc128b6792d8c023b59a928a9e5_504e268e-7d74-49e7-ae05-46952e3a14f3.jpg?v=1791452506","width":1500,"height":1500},{"id":86449302339926,"created_at":"2026-10-08T10:41:43+01:00","position":2,"updated_at":"2026-10-08T10:41:46+01:00","product_id":11350217752918,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/e39303f2aa01d7a335f3c23fd9b71293_aa4607fc-9c63-4310-9f3f-d9692275f21c.jpg?v=1791452506","width":1500,"height":1500},{"id":86449302372694,"created_at":"2026-10-08T10:41:43+01:00","position":3,"updated_at":"2026-10-08T10:41:46+01:00","product_id":11350217752918,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/47ddf8df5601ba8072e3d8168d33b480_5391395e-8da2-4ae1-9d2a-130d05a069a1.jpg?v=1791452506","width":1500,"height":1500},{"id":86449302405462,"created_at":"2026-10-08T10:41:43+01:00","position":4,"updated_at":"2026-10-08T10:41:46+01:00","product_id":11350217752918,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/606486f33a35d0aed35e47e00139f268_03b6c678-c6f3-4d90-a8ef-816df68839f8.jpg?v=1791452506","width":1500,"height":1500}],"options":[{"name":"Header Size","position":1,"values":["1-7\/8\"","2\""]},{"name":"Cat Type","position":2,"values":["Comp. Only","GREEN Cats"]}]},{"id":11350218735958,"title":"Kooks Mustang 5.0 Header and OEM Connection Kits (2015-2026)","handle":"kooks-2015-2026-ford-mustang-gt-5-0l-header-conn-kits-95d36c35","body_html":"\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","published_at":"2026-10-09T13:36:27+01:00","created_at":"2026-10-08T10:41:47+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:ford-mustang","make:ford","type:header-kit"],"variants":[{"id":55646911562070,"title":"1-7\/8\" \/ Performance Cats","option1":"1-7\/8\"","option2":"Performance Cats","option3":null,"sku":"1151H422","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"2813.77","grams":23133,"compare_at_price":null,"position":1,"product_id":11350218735958,"created_at":"2026-10-08T10:41:47+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646911594838,"title":"1-7\/8\" \/ GREEN Cats","option1":"1-7\/8\"","option2":"GREEN Cats","option3":null,"sku":"1151H432","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3381.76","grams":23133,"compare_at_price":null,"position":2,"product_id":11350218735958,"created_at":"2026-10-08T10:41:47+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86449306698070,"created_at":"2026-10-08T10:41:47+01:00","position":1,"updated_at":"2026-10-08T10:41:50+01:00","product_id":11350218735958,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/b3a18e1a4cdcfb765f82e1488d67ccff_8ef9c032-b699-4f7e-b6bd-b052c75e4fc1.jpg?v=1791452510","width":1500,"height":1500},{"id":86449306730838,"created_at":"2026-10-08T10:41:47+01:00","position":2,"updated_at":"2026-10-08T10:41:50+01:00","product_id":11350218735958,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/18b69145864c0435d40d2ae8d8845174_035850ce-6aea-4996-b3e5-b3a3f8866c88.png?v=1791452510","width":800,"height":450},{"id":86449306763606,"created_at":"2026-10-08T10:41:47+01:00","position":3,"updated_at":"2026-10-08T10:41:51+01:00","product_id":11350218735958,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/c31321b31d8d9e922924bd1b72281623_19541ccc-2efe-4672-8713-c0007bf4f14c.jpg?v=1791452511","width":1500,"height":1500},{"id":86449306796374,"created_at":"2026-10-08T10:41:47+01:00","position":4,"updated_at":"2026-10-08T10:41:50+01:00","product_id":11350218735958,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/67ccaebb09e7f98bb34042154a4f8e27_d6091486-2a76-4bd8-817c-3c00fe88628b.jpg?v=1791452510","width":1500,"height":1500},{"id":86449306829142,"created_at":"2026-10-08T10:41:47+01:00","position":5,"updated_at":"2026-10-08T10:41:50+01:00","product_id":11350218735958,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/3534f0cb69f588f09fdb66d1e72e2123_a74c359f-9541-4d66-b95d-20b3caaf9f20.jpg?v=1791452510","width":1500,"height":1500},{"id":86449306861910,"created_at":"2026-10-08T10:41:47+01:00","position":6,"updated_at":"2026-10-08T10:41:50+01:00","product_id":11350218735958,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/8a63c745b4af0595c579e7e1219ccd3d_afe2c71d-34db-4f6e-a65f-addc6665444a.jpg?v=1791452510","width":800,"height":800},{"id":86449306894678,"created_at":"2026-10-08T10:41:47+01:00","position":7,"updated_at":"2026-10-08T10:41:50+01:00","product_id":11350218735958,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/8a63c745b4af0595c579e7e1219ccd3d_35a112ea-04e6-4d26-8cc5-7d312424ba08.jpg?v=1791452510","width":800,"height":800},{"id":86449306927446,"created_at":"2026-10-08T10:41:47+01:00","position":8,"updated_at":"2026-10-08T10:41:50+01:00","product_id":11350218735958,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/ceebefd6b93585b2eaae107a10174548_9c924244-8978-493e-83d2-9bebb286f99a.png?v=1791452510","width":1080,"height":1080},{"id":86449306960214,"created_at":"2026-10-08T10:41:47+01:00","position":9,"updated_at":"2026-10-08T10:41:50+01:00","product_id":11350218735958,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/3534f0cb69f588f09fdb66d1e72e2123_d9ef7ae2-b076-4432-bb84-9abb26237ad2.jpg?v=1791452510","width":1500,"height":1500}],"options":[{"name":"Header Size","position":1,"values":["1-7\/8\""]},{"name":"Cat Type","position":2,"values":["Performance Cats","GREEN Cats"]}]},{"id":11350220767574,"title":"Kooks Shelby GT500 5.2L Header and Connection Kits (2020-2022)","handle":"kooks-2020-2022-shelby-gt500-5-2l-header-conn-kits","body_html":"\u003ch2\u003eBuild an exhaust upgrade around your supercharged GT500\u003c\/h2\u003e\u003cp\u003eGive your Predator-powered GT500 a matched Kooks long tube header and front connection upgrade. All three packages use 2\" headers, with Competition Only, GREEN or H.O. GREEN connections. The kits include OEM adapters, allowing the factory-style rear exhaust to remain part of the setup.\u003c\/p\u003e\u003cp\u003eSKUs: 1156H610, 1156H630, 1156H640\u003c\/p\u003e\u003ch2\u003eChoose the catalyst specification\u003c\/h2\u003e\u003cp\u003eGREEN and H.O. GREEN give you two catted choices for this supercharged engine. The H.O. GREEN package uses 4-1\/2\" catalyst bodies and a 300 CPSI substrate. Competition Only supplies uncatted front connections for competition use.\u003c\/p\u003e\u003ch2\u003eThe adapters and fitting parts are part of the kit\u003c\/h2\u003e\u003cp\u003eThe 2\" headers use 3\" collectors. O2 extensions, gaskets and installation hardware are included; the H.O. GREEN package expressly specifies 3\" to 2-3\/4\" OEM adapters. That gives you a clearer complete purchase than buying headers without their front connections.\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\u003e1156H610\u003c\/td\u003e\n\u003ctd\u003eCat Type: Comp. Only\u003c\/td\u003e\n\u003ctd\u003eHeaders; Competition Only front connections; OEM adapters, O2 extensions, 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\u003e1156H630\u003c\/td\u003e\n\u003ctd\u003eCat Type: GREEN Cats\u003c\/td\u003e\n\u003ctd\u003eHeaders; GREEN Cats front connections; OEM adapters, O2 extensions, gaskets and 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\u003e1156H640\u003c\/td\u003e\n\u003ctd\u003eCat Type: H.O. GREEN Cats\u003c\/td\u003e\n\u003ctd\u003eHeaders; H.O. GREEN cats front connections; OEM adapters, O2 extensions, gaskets and 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\u003ctr\u003e\n\u003ctd\u003e2020-2022\u003c\/td\u003e\n\u003ctd\u003eFord Mustang Shelby GT500\u003c\/td\u003e\n\u003ctd\u003e5.2L V8\u003c\/td\u003e\n\u003ctd\u003e1156H610, 1156H630, 1156H640\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\u003e1156H610, 1156H630, 1156H640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2020-2022 Shelby GT500 5.2L 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\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e2\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChoices\u003c\/td\u003e\n\u003ctd\u003eCompetition Only, GREEN or H.O. GREEN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM adapters\u003c\/td\u003e\n\u003ctd\u003eIncluded; H.O. GREEN kit specifies 3\" to 2-3\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitting parts\u003c\/td\u003e\n\u003ctd\u003eO2 extensions, gaskets and installation hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eH.O. GREEN substrate\u003c\/td\u003e\n\u003ctd\u003e300 CPSI in 4-1\/2\" bodies\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 need to buy OEM adapters separately?\u003c\/h3\u003e\u003cp\u003eThe kits include OEM adapters. The H.O. GREEN package specifies the 3\" to 2-3\/4\" transition.\u003c\/p\u003e\u003ch3\u003eIs this for the earlier 5.4 or 5.8 GT500?\u003c\/h3\u003e\u003cp\u003eThis page is the supercharged 5.2-litre GT500 package. Earlier GT500 generations have different kits.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003e1156H610: Competition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003cp\u003eThe competition-use waiver applies to 1156H610.\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","published_at":"2026-10-09T13:35:09+01:00","created_at":"2026-10-08T10:41:58+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:ford-mustang","make:ford","type:header-kit"],"variants":[{"id":55646916641110,"title":"Comp. Only","option1":"Comp. Only","option2":null,"option3":null,"sku":"1156H610","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"2631.91","grams":21772,"compare_at_price":null,"position":1,"product_id":11350220767574,"created_at":"2026-10-08T10:41:58+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646916673878,"title":"GREEN Cats","option1":"GREEN Cats","option2":null,"option3":null,"sku":"1156H630","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3483.89","grams":21772,"compare_at_price":null,"position":2,"product_id":11350220767574,"created_at":"2026-10-08T10:41:58+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646916706646,"title":"H.O. GREEN Cats","option1":"H.O. GREEN Cats","option2":null,"option3":null,"sku":"1156H640","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"4004.54","grams":23133,"compare_at_price":null,"position":3,"product_id":11350220767574,"created_at":"2026-10-08T10:41:58+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86449330749782,"created_at":"2026-10-08T10:41:58+01:00","position":1,"updated_at":"2026-10-08T10:42:02+01:00","product_id":11350220767574,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/c8b3183c74ac5c3861ea37c9bcfa61e3_338dca62-e5a3-471e-ba60-130908761524.jpg?v=1791452522","width":4457,"height":3529},{"id":86449330782550,"created_at":"2026-10-08T10:41:58+01:00","position":2,"updated_at":"2026-10-08T10:42:05+01:00","product_id":11350220767574,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/1c879a9722fc784b2a4e81705cf7adbb_71990572-a4f2-4464-a771-723f280110d2.jpg?v=1791452525","width":4457,"height":3529},{"id":86449330815318,"created_at":"2026-10-08T10:41:58+01:00","position":3,"updated_at":"2026-10-08T10:42:04+01:00","product_id":11350220767574,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/2d735b8f78ceb39fd37a884b27fbfb46_50e1db65-1a30-4105-a94a-fc86f77e4c9b.jpg?v=1791452524","width":4457,"height":3529}],"options":[{"name":"Cat Type","position":1,"values":["Comp. Only","GREEN Cats","H.O. GREEN Cats"]}]},{"id":11350220702038,"title":"Kooks Chevrolet SS LS3 Header and X-Pipe Kits (2014-2017)","handle":"kooks-2014-2017-chevy-ss-header-conn-kits","body_html":"\u003ch2\u003eLet your Chevrolet SS show more of its V8 character\u003c\/h2\u003e\u003cp\u003eA matched header-and-X-pipe kit is a satisfying next step for your LS3-powered Chevrolet SS. These Kooks packages combine 1-7\/8\" long tube headers with a stainless steel crossover and a 2-1\/2\" OEM rear interface. Choose Performance or GREEN cats around your engine and its modifications.\u003c\/p\u003e\u003cp\u003eSKUs: 2510H420, 2510H430\u003c\/p\u003e\u003ch2\u003eOne upgrade, two catalyst choices\u003c\/h2\u003e\u003cp\u003eBoth kits have 1-7\/8\" primaries and 3\" collectors. The supplied X-pipe takes the new front exhaust to the 2-1\/2\" factory-style rear connection. Performance cats suit naturally aspirated builds; GREEN is the option here for an engine with a supercharger or turbocharger.\u003c\/p\u003e\u003ch2\u003eKeep your favourite rear exhaust\u003c\/h2\u003e\u003cp\u003eThe OEM rear interface gives you a useful route to retain the rear system you already like. It also makes the kit easier to plan around a compatible cat-back, rather than replacing every section of the exhaust at once. Match the actual rear connection when choosing the complete 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\u003e2510H420\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\u003e2510H430\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\u003ctr\u003e\n\u003ctd\u003e2014-2017\u003c\/td\u003e\n\u003ctd\u003eChevrolet SS Base\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2510H420, 2510H430\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\u003e2510H420, 2510H430\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2014-2017 Chevrolet SS, 6.2L LS3\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 connection\u003c\/td\u003e\n\u003ctd\u003e3\" to 2-1\/2\" OEM rear interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChoices\u003c\/td\u003e\n\u003ctd\u003e2510H420 Performance; 2510H430 GREEN\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 should I choose for a supercharged SS?\u003c\/h3\u003e\u003cp\u003eChoose the GREEN-catted 2510H430 from these two options. Performance cats are for naturally aspirated applications.\u003c\/p\u003e\u003ch3\u003eIs the crossover included?\u003c\/h3\u003e\u003cp\u003eYes. Both kits include the matching X-pipe.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003e2510H420: 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","published_at":"2026-10-09T13:35:12+01:00","created_at":"2026-10-08T10:41:57+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:chevrolet-ss","make:chevrolet","type:header-kit"],"variants":[{"id":55646916542806,"title":"Performance Cats","option1":"Performance Cats","option2":null,"option3":null,"sku":"2510H420","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"3667.26","grams":39916,"compare_at_price":null,"position":1,"product_id":11350220702038,"created_at":"2026-10-08T10:41:57+01:00","updated_at":"2026-10-10T16:52:20+01:00"},{"id":55646916575574,"title":"GREEN Cats","option1":"GREEN Cats","option2":null,"option3":null,"sku":"2510H430","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"4235.24","grams":39916,"compare_at_price":null,"position":2,"product_id":11350220702038,"created_at":"2026-10-08T10:41:57+01:00","updated_at":"2026-10-10T16:52:20+01:00"}],"images":[{"id":86449330487638,"created_at":"2026-10-08T10:41:57+01:00","position":1,"updated_at":"2026-10-08T10:42:00+01:00","product_id":11350220702038,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/7c4ec21c15dac9847d390570fa212ddf_f2f5cb86-67bd-4ade-be3c-33f4f001f210.jpg?v=1791452520","width":1500,"height":1500},{"id":86449330520406,"created_at":"2026-10-08T10:41:57+01:00","position":2,"updated_at":"2026-10-08T10:42:01+01:00","product_id":11350220702038,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/7c4ec21c15dac9847d390570fa212ddf_743b5b0f-bed5-426a-9708-59ba90d11bd9.jpg?v=1791452521","width":1500,"height":1500}],"options":[{"name":"Cat Type","position":1,"values":["Performance Cats","GREEN Cats"]}]},{"id":11350213919062,"title":"Kooks Hellcat 2-inch H.O. GREEN Header and OEM Connection Kit | 3103H640","handle":"kooks-2009-2023-dodge-charger-challenger-header-conn-kits-704faa61","body_html":"\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","published_at":"2026-10-09T13:39:38+01:00","created_at":"2026-10-08T10:41:27+01:00","updated_at":"2026-10-10T16:52:20+01:00","vendor":"Kooks","product_type":"Header Kits","tags":["brand:kooks","cat:exhausts","dept:performance-parts","fits:dodge-challenger","fits:dodge-charger","make:dodge","type:header-kit"],"variants":[{"id":55646902813014,"title":"6.2L Hellcat \/ 2\" \/ H.O. 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