{"product":{"id":11350220046678,"title":"Kooks Jeep JK LS-Swap Long Tube Headers, 1-7\/8-inch | 37102400","body_html":"\u003ch2\u003eGive your LS-swapped Wrangler a matching front exhaust\u003c\/h2\u003e\u003cp\u003eThese Kooks headers provide the 1-7\/8\" front arrangement for the JK LS-engine conversion. The 3\" TORCA Swivel-Seal outlets, O2 bungs and included fitting parts let you build the exhaust around the matching LS-swap components.\u003c\/p\u003e\u003cp\u003eSKU: 37102400\u003c\/p\u003e\u003ch2\u003eHeaders and fitting parts together\u003c\/h2\u003e\u003cp\u003eThe headers use 304 stainless steel, round ports and 3\/8\" laser-cut flanges. PY-8024-AL gaskets, BK110 header bolts and TORCA Swivel-Seal clamps are included.\u003c\/p\u003e\u003ch2\u003eMatch the conversion hardware\u003c\/h2\u003e\u003cp\u003eUse an RPM Extreme or similar swap kit, JKLS-HC-ENG-MOUNT plate or similar and GM Gen 4 hydraulic mounts. A minimum 2-1\/2\" suspension lift is recommended. The four-door application is shown below; a two-door conversion may need fuel-tank relocation and separate fitment planning.\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\"\u003eTalk to 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 naturally aspirated four-door JK LS conversion, the \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/products\/kooks-37103200?variant=55646915952982\"\u003eJK LS-swap catted Y-pipe\u003c\/a\u003e pairs with these headers and the specified swap cat-back. The engine-mount and recommended lift conditions remain.\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\u003c\/td\u003e\n\u003ctd\u003eJeep Wrangler JK Unlimited Sport\u003c\/td\u003e\n\u003ctd\u003eLS engine conversion\u003c\/td\u003e\n\u003ctd\u003e37102400\u003c\/td\u003e\n\u003ctd\u003eFour-door JK LS swap; specified mounts; minimum 2-1\/2\" suspension lift recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018\u003c\/td\u003e\n\u003ctd\u003eJeep Wrangler JK Unlimited Willys Wheeler\u003c\/td\u003e\n\u003ctd\u003eLS engine conversion\u003c\/td\u003e\n\u003ctd\u003e37102400\u003c\/td\u003e\n\u003ctd\u003eFour-door JK LS swap; specified mounts; minimum 2-1\/2\" suspension lift recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018\u003c\/td\u003e\n\u003ctd\u003eJeep Wrangler JK Unlimited Sahara\u003c\/td\u003e\n\u003ctd\u003eLS engine conversion\u003c\/td\u003e\n\u003ctd\u003e37102400\u003c\/td\u003e\n\u003ctd\u003eFour-door JK LS swap; specified mounts; minimum 2-1\/2\" suspension lift recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018\u003c\/td\u003e\n\u003ctd\u003eJeep Wrangler JK Unlimited Rubicon\u003c\/td\u003e\n\u003ctd\u003eLS engine conversion\u003c\/td\u003e\n\u003ctd\u003e37102400\u003c\/td\u003e\n\u003ctd\u003eFour-door JK LS swap; specified mounts; minimum 2-1\/2\" suspension lift recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018\u003c\/td\u003e\n\u003ctd\u003eJeep Wrangler JK Unlimited Sport S\u003c\/td\u003e\n\u003ctd\u003eLS engine conversion\u003c\/td\u003e\n\u003ctd\u003e37102400\u003c\/td\u003e\n\u003ctd\u003eFour-door JK LS swap; specified mounts; minimum 2-1\/2\" suspension lift recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2007-2017\u003c\/td\u003e\n\u003ctd\u003eJeep Wrangler Unlimited Rubicon\u003c\/td\u003e\n\u003ctd\u003eLS engine conversion\u003c\/td\u003e\n\u003ctd\u003e37102400\u003c\/td\u003e\n\u003ctd\u003eFour-door JK LS swap; specified mounts; minimum 2-1\/2\" suspension lift recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2007-2017\u003c\/td\u003e\n\u003ctd\u003eJeep Wrangler Unlimited Sahara\u003c\/td\u003e\n\u003ctd\u003eLS engine conversion\u003c\/td\u003e\n\u003ctd\u003e37102400\u003c\/td\u003e\n\u003ctd\u003eFour-door JK LS swap; specified mounts; minimum 2-1\/2\" suspension lift recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2007-2010\u003c\/td\u003e\n\u003ctd\u003eJeep Wrangler Unlimited X\u003c\/td\u003e\n\u003ctd\u003eLS engine conversion\u003c\/td\u003e\n\u003ctd\u003e37102400\u003c\/td\u003e\n\u003ctd\u003eFour-door JK LS swap; specified mounts; minimum 2-1\/2\" suspension lift recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010-2017\u003c\/td\u003e\n\u003ctd\u003eJeep Wrangler Unlimited Sport\u003c\/td\u003e\n\u003ctd\u003eLS engine conversion\u003c\/td\u003e\n\u003ctd\u003e37102400\u003c\/td\u003e\n\u003ctd\u003eFour-door JK LS swap; specified mounts; minimum 2-1\/2\" suspension lift recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010\u003c\/td\u003e\n\u003ctd\u003eJeep Wrangler Unlimited Mountain\u003c\/td\u003e\n\u003ctd\u003eLS engine conversion\u003c\/td\u003e\n\u003ctd\u003e37102400\u003c\/td\u003e\n\u003ctd\u003eFour-door JK LS swap; specified mounts; minimum 2-1\/2\" suspension lift recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eJeep Wrangler Unlimited Sport S\u003c\/td\u003e\n\u003ctd\u003eLS engine conversion\u003c\/td\u003e\n\u003ctd\u003e37102400\u003c\/td\u003e\n\u003ctd\u003eFour-door JK LS swap; specified mounts; minimum 2-1\/2\" suspension lift recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eJeep Wrangler Unlimited 75th Anniversary\u003c\/td\u003e\n\u003ctd\u003eLS engine conversion\u003c\/td\u003e\n\u003ctd\u003e37102400\u003c\/td\u003e\n\u003ctd\u003eFour-door JK LS swap; specified mounts; minimum 2-1\/2\" suspension lift recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017\u003c\/td\u003e\n\u003ctd\u003eJeep Wrangler Unlimited Smoky Mountain\u003c\/td\u003e\n\u003ctd\u003eLS engine conversion\u003c\/td\u003e\n\u003ctd\u003e37102400\u003c\/td\u003e\n\u003ctd\u003eFour-door JK LS swap; specified mounts; minimum 2-1\/2\" suspension lift recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017\u003c\/td\u003e\n\u003ctd\u003eJeep Wrangler Unlimited Winter Edition\u003c\/td\u003e\n\u003ctd\u003eLS engine conversion\u003c\/td\u003e\n\u003ctd\u003e37102400\u003c\/td\u003e\n\u003ctd\u003eFour-door JK LS swap; specified mounts; minimum 2-1\/2\" suspension lift recommended\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\u003e37102400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2007-2018 JK four-door with LS conversion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial \/ sizes\u003c\/td\u003e\n\u003ctd\u003e304 stainless; 1-7\/8\" primaries, 3\" outlets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead \/ joint details\u003c\/td\u003e\n\u003ctd\u003eRound ports; 3\/8\" flanges; O2 bungs; TORCA Swivel-Seal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003ePY-8024-AL gaskets; BK110 bolts; TORCA clamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eRPM Extreme or similar kit; JKLS-HC-ENG-MOUNT or similar plate; GM Gen 4 hydraulic mounts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLift recommendation\u003c\/td\u003e\n\u003ctd\u003eMinimum 2-1\/2\" suspension lift recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eCustom swap; additional fitting parts may be required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWill these fit the factory Jeep engine?\u003c\/h3\u003e\u003cp\u003eThey are for an LS engine conversion and the matching swap hardware.\u003c\/p\u003e\u003ch3\u003eAre the TORCA clamps included?\u003c\/h3\u003e\u003cp\u003eYes. The listed gaskets, bolts and TORCA Swivel-Seal clamps are supplied.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003e37102400: Competition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003cp\u003eThe competition-use waiver applies to 37102400.\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","vendor":"Kooks","product_type":"Exhaust Headers","created_at":"2026-10-08T10:41:53+01:00","handle":"kooks-37102400","updated_at":"2026-10-10T18:41:03+01:00","published_at":"2026-10-09T13:35:34+01:00","template_suffix":null,"published_scope":"global","tags":"brand:kooks, cat:exhausts, dept:performance-parts, fits:jeep-wrangler, fits:jeep-wrangler-jk, make:jeep, type:exhaust-header","variants":[{"id":55646914609494,"product_id":11350220046678,"title":"Default Title","price":"1603.15","sku":"37102400","position":1,"compare_at_price":"","fulfillment_service":"manual","inventory_management":null,"option1":"Default Title","option2":null,"option3":null,"created_at":"2026-10-08T10:41:53+01:00","updated_at":"2026-10-10T18:41:03+01:00","taxable":true,"barcode":"842422171636","grams":14515,"image_id":null,"weight":14.515,"weight_unit":"kg","requires_shipping":true,"quantity_rule":{"min":1,"max":null,"increment":1},"price_currency":"GBP","compare_at_price_currency":"","quantity_price_breaks":[]}],"options":[{"id":14512404332886,"product_id":11350220046678,"name":"Title","position":1,"values":["Default Title"]}],"images":[{"id":86449325605206,"product_id":11350220046678,"position":1,"created_at":"2026-10-08T10:41:53+01:00","updated_at":"2026-10-08T10:41:56+01:00","alt":"Kooks 1-7\/8\" Stainless Headers for LS Swap. 2007-2018 Jeep Wrangler JK 4-Door.","width":800,"height":800,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/46e20bfac479404aca8ab6a2557a3a74_443b03e5-9b52-466b-963b-209d69480a25.jpg?v=1791452516","variant_ids":[]}],"image":{"id":86449325605206,"product_id":11350220046678,"position":1,"created_at":"2026-10-08T10:41:53+01:00","updated_at":"2026-10-08T10:41:56+01:00","alt":"Kooks 1-7\/8\" Stainless Headers for LS Swap. 2007-2018 Jeep Wrangler JK 4-Door.","width":800,"height":800,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/46e20bfac479404aca8ab6a2557a3a74_443b03e5-9b52-466b-963b-209d69480a25.jpg?v=1791452516","variant_ids":[]}}}