{"product_id":"kooks-2012-2020-grand-cherokee-durango-6-4l-6-2l-header-conn-kits-2cd7f88d","title":"Kooks Header Kits for Grand Cherokee SRT \/ Trackhawk \u0026 Durango SRT","description":"\u003ch2\u003eGive your performance SUV the V8 soundtrack you want\u003c\/h2\u003e\u003cp\u003eThe appeal of a HEMI-powered SUV is how much fun it can add to an ordinary journey. For an exhaust upgrade, these Kooks packages combine stainless long tube headers and OEM connection pipes for the listed Grand Cherokee SRT, Trackhawk and Durango SRT applications. The table gives the confirmed model-year scope for each option, so the header and catalyst choice stays matched to your vehicle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSKUs:\u003c\/strong\u003e 3410H411, 3410H431, 3410H611, 3410H631, 3410H641\u003c\/p\u003e\u003ch2\u003eChoose the header and catalyst combination\u003c\/h2\u003e\u003cp\u003eBoth 1-7\/8\" and 2\" primary options use 3\" collectors and a 3\" OEM rear connection. GREEN catalysts support naturally aspirated and forced-induction applications within their rating. H.O. GREEN uses a larger catalyst body and a 300 CPSI substrate for higher-output builds. Competition Only connections provide catalyst-free pipes for a dedicated competition exhaust.\u003c\/p\u003e\u003ch2\u003eRetain your compatible rear exhaust\u003c\/h2\u003e\u003cp\u003eThe included connection pipes link the long tube headers to the OEM rear exhaust. The 2\" GREEN kit includes gaskets, bolts, clamps and O2 extensions, while the catted kits provide the exhaust parts needed for the compatible OEM connection.\u003c\/p\u003e\u003ch2\u003eAllow for the fitting work\u003c\/h2\u003e\u003cp\u003eWe recommend professional fitting and calibration for the finished long tube conversion. Installation of the 2\" headers involves engine-cradle access, so this is a job to plan with the installer. Sensor routing, heat clearances and a first heat-cycle fastener check are part of finishing the system properly.\u003c\/p\u003e\u003ch2\u003eTuning for your header upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend a tune with these headers, matched to your engine and the completed exhaust. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eTalk to us about tuning\u003c\/a\u003e for your vehicle and modifications.\u003c\/p\u003e\u003ch2\u003eChoose your option\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eHeader Size\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eCat Type\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ contents\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eStated use restriction\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e3410H411\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\"\u003c\/td\u003e\n\u003ctd\u003eComp. Only\u003c\/td\u003e\n\u003ctd\u003eGrand Cherokee SRT 6.4 2012-2020; Trackhawk 6.2 2018-2020; Durango SRT 6.4 2018-2020. Catalyst-free connections.\u003c\/td\u003e\n\u003ctd\u003eCompetition, off-road and track use only. Not for use on public roads. Kooks competition-use waiver required.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3410H431\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\"\u003c\/td\u003e\n\u003ctd\u003eGREEN Cats\u003c\/td\u003e\n\u003ctd\u003eGrand Cherokee SRT 6.4 2012-2020; Trackhawk 6.2 2018-2020; Durango SRT 6.4 2018-2020. GREEN catted connections.\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3410H611\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003ctd\u003eComp. Only\u003c\/td\u003e\n\u003ctd\u003eGrand Cherokee SRT 6.4 2012-2020; Trackhawk 6.2 2018-2020; Durango SRT 6.4 2018-2020. Catalyst-free connections.\u003c\/td\u003e\n\u003ctd\u003eCompetition, off-road and track use only. Not for use on public roads. Kooks competition-use waiver required.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3410H631\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003ctd\u003eGREEN Cats\u003c\/td\u003e\n\u003ctd\u003eGrand Cherokee SRT 6.4 2012-2021; Trackhawk 6.2 2018-2021; Durango SRT 6.4 2018-2022. GREEN catted connections; gaskets, bolts, clamps and O2 extensions included.\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3410H641\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003ctd\u003eH.O. GREEN Cats\u003c\/td\u003e\n\u003ctd\u003eGrand Cherokee SRT 6.4 2012-2021; Trackhawk 6.2 2018-2021; Durango SRT 6.4 2018-2022. H.O. GREEN catted connections.\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle and trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU \/ fitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018-2022\u003c\/td\u003e\n\u003ctd\u003eDodge Durango SRT\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3410H631, 3410H641. 3410H411, 3410H431 and 3410H611 cover this application only through 2020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2022\u003c\/td\u003e\n\u003ctd\u003eDodge Durango SRT 392\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3410H631, 3410H641\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012-2015\u003c\/td\u003e\n\u003ctd\u003eJeep Grand Cherokee SRT8\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3410H411, 3410H431, 3410H611, 3410H631, 3410H641\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013-2021\u003c\/td\u003e\n\u003ctd\u003eJeep Grand Cherokee SRT\u003c\/td\u003e\n\u003ctd\u003e6.4L V8\u003c\/td\u003e\n\u003ctd\u003e3410H631, 3410H641. 3410H411, 3410H431 and 3410H611 cover this application only through 2020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018-2021\u003c\/td\u003e\n\u003ctd\u003eJeep Grand Cherokee Trackhawk\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e3410H631, 3410H641. 3410H411, 3410H431 and 3410H611 cover this application only through 2020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eListed WK2 Grand Cherokee SRT 6.4, Trackhawk 6.2 and Durango SRT 6.4; years vary by SKU below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeader design\u003c\/td\u003e\n\u003ctd\u003eStainless steel long tube headers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary diameter choices\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" or 2\" primary tubes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollector and rear outlet\u003c\/td\u003e\n\u003ctd\u003e3\" collectors and 3\" OEM rear connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupplied exhaust parts\u003c\/td\u003e\n\u003ctd\u003eHeader pair and matching connection pipes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2\" GREEN fitting parts\u003c\/td\u003e\n\u003ctd\u003eGaskets, bolts, clamps and O2 extensions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation detail\u003c\/td\u003e\n\u003ctd\u003e2\" header installation involves engine-cradle access\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTuning recommendation\u003c\/td\u003e\n\u003ctd\u003eHoonies recommends a tune for the completed header and exhaust installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eFAQs\u003c\/h2\u003e\u003ch3\u003eCan I keep the original rear exhaust?\u003c\/h3\u003e\u003cp\u003eYes, on the listed compatible application. The packages include a 3\" OEM rear connection.\u003c\/p\u003e\u003ch3\u003eAre the model years identical for every kit?\u003c\/h3\u003e\u003cp\u003eNo. Use the model-year details beside the selected SKU. Some 2\" catted options cover later applications than the earlier competition and 1-7\/8\" kits.\u003c\/p\u003e\u003ch3\u003eWhich kit suits a modified Trackhawk?\u003c\/h3\u003e\u003cp\u003eMatch the primary size to the engine and choose a GREEN-family catalyst with the appropriate capacity for the supercharged build. We can help you compare the listed combinations.\u003c\/p\u003e\u003ch3\u003eIs this a simple manifold swap?\u003c\/h3\u003e\u003cp\u003eIt is a long tube and connection-pipe conversion. Professional installation is recommended; the 2\" header fitting procedure includes engine-cradle access.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"1-7\/8\" \/ Comp. Only","offer_id":55646907695446,"sku":"3410H411","price":3234.81,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\" \/ GREEN Cats","offer_id":55646907728214,"sku":"3410H431","price":4086.79,"currency_code":"GBP","in_stock":true},{"title":"2\" \/ Comp. Only","offer_id":55646907760982,"sku":"3410H611","price":3349.54,"currency_code":"GBP","in_stock":true},{"title":"2\" \/ GREEN Cats","offer_id":55646907793750,"sku":"3410H631","price":4201.52,"currency_code":"GBP","in_stock":true},{"title":"2\" \/ H.O. GREEN Cats","offer_id":55646907826518,"sku":"3410H641","price":4722.18,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/3b1499841e147f42e6db9ad2b7342d6b_e4e123b3-4587-4ae2-a6bc-af18d733ec18.jpg?v=1791452502","url":"https:\/\/hooniesadrenaline.co.uk\/products\/kooks-2012-2020-grand-cherokee-durango-6-4l-6-2l-header-conn-kits-2cd7f88d","provider":"Hoonies Adrenaline","version":"1.0","type":"link"}