{"product_id":"kooks-2015-2026-ford-mustang-gt-headers","title":"Kooks Long Tube Headers for Ford Mustang GT 5.0 (2015-2026)","description":"\u003ch2\u003eBring out your Mustang's V8 character\u003c\/h2\u003e\u003cp\u003eStart your Mustang exhaust upgrade at the cylinder heads. These Kooks long tube headers let you build a complete exhaust around your 5.0-litre Coyote, with three primary sizes to suit your engine. The mandrel-bent 304 stainless steel tubing, 3\/8\" laser-cut flanges and 3\" collectors give you a solid foundation for the V8 sound and character you enjoy. Add the matching front connections, then choose how to join the rear exhaust you want to keep or replace.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSKUs:\u003c\/strong\u003e 11512202, 11512402, 11512602\u003c\/p\u003e\u003ch2\u003eChoose the right primary size\u003c\/h2\u003e\u003cp\u003eChoose from 1-3\/4\", 1-7\/8\" or 2\" primary tubes, each feeding a 3\" collector. The primary is the individual tube leaving the cylinder head; the collector brings those tubes together. A bigger primary is not automatically better. Engine output, induction and the rev range you actually use matter more than choosing the largest number. We can help you match the size to your current engine and the upgrades you have planned.\u003c\/p\u003e\u003ch2\u003eChoose the connections for your exhaust\u003c\/h2\u003e\u003cp\u003eStart with the matching Mustang front connection pipes, available in Competition Only, GREEN and H.O. GREEN versions. We also offer Performance catted connections for naturally aspirated builds, and ULTRA-GREEN connections. Choose the catalyst specification for your engine and intended use. To keep the factory GT rear exhaust, add the \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/products\/kooks-2015-2026-ford-mustang-connection-adapters-b940287c?variant=55646901371222\"\u003e11513000-2 OEM adapter pair\u003c\/a\u003e. If you want to replace the crossover section too, the 11513700 ULTRA X-pipe connects the Kooks headers and front pipes to the OEM rear exhaust and includes its mid-pipe adapters and clamps. The X-pipe is an alternative rear connection route, so choose it or the separate OEM adapter pair to suit your exhaust. The front connection pipes do not include clamps.\u003c\/p\u003e\u003ch2\u003eFitting and setup\u003c\/h2\u003e\u003cp\u003eGaskets, header bolts and ball-and-socket hardware are included. The oxygen-sensor extensions differ by model year: one extension for 2015-2017 cars and two for 2018 onwards. Professional installation is recommended, with attention to sensor routing, clearance and a fastener check after the first heat cycle.\u003c\/p\u003e\u003ch2\u003eTuning for your header upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend a tune with these headers, matched to your engine and the completed exhaust. For a 2015-2017 GT 5.0, see our \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/products\/ford-mustang-gt-5-0l-v8-2015-2017-custom-ecu-tuning\"\u003eMustang GT custom ECU tuning\u003c\/a\u003e. For 2024+ cars, we have \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/products\/ford-mustang-gt-s650-5-0l-v8-ecu-remap-2024-stage-1-custom-tuning\"\u003eGT S650 tuning\u003c\/a\u003e and \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/products\/ford-mustang-dark-horse-s650-5-0l-v8-ecu-tuning-2024-custom-mustang-dark-horse-remap\"\u003eDark Horse tuning\u003c\/a\u003e listings. The S650 listings cover Stage 1 tuning; \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003econtact us\u003c\/a\u003e to discuss calibration for your header conversion before booking. For a 2018-2023 GT, Bullitt or Mach 1, \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eget in touch\u003c\/a\u003e to discuss tuning for your car.\u003c\/p\u003e\u003ch2\u003eChoose your option\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eHeader Size\u003c\/th\u003e\n\u003cth scope=\"col\"\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\u003e11512202\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\"\u003c\/td\u003e\n\u003ctd\u003eHeader pair with 3\" collectors and fitting hardware; matching front connections 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\u003e11512402\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\"\u003c\/td\u003e\n\u003ctd\u003eHeader pair with 3\" collectors and fitting hardware; matching front connections 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\u003e11512602\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003ctd\u003eHeader pair with 3\" collectors and fitting hardware; matching front connections 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\u003e2015-2026\u003c\/td\u003e\n\u003ctd\u003eFord Mustang GT Premium\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e11512202, 11512402, 11512602\u003c\/td\u003e\n\u003c\/tr\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\u003e11512202, 11512402, 11512602\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eFord Mustang GT 50 Years Limited Edition\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e11512202, 11512402, 11512602\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\u003e11512202, 11512402, 11512602\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\u003e11512202, 11512402, 11512602\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\u003e11512202, 11512402, 11512602\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2024-2025\u003c\/td\u003e\n\u003ctd\u003eFord Mustang Dark Horse Premium\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e11512202, 11512402, 11512602\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\u003eFord Mustang GT 5.0 Coyote, 2015-2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeader design\u003c\/td\u003e\n\u003ctd\u003eLong tube; round exhaust ports; stock bolt pattern\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary diameter choices\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\", 1-7\/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 on all three options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eMandrel-bent 304 stainless steel; 3\/8\" laser-cut flanges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded parts\u003c\/td\u003e\n\u003ctd\u003eHeader pair, gaskets, header bolts, ball-and-socket hardware and model-year-specific O2 extensions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExhaust connection\u003c\/td\u003e\n\u003ctd\u003eRequires matching Kooks front connection pipes and OEM adapters or matching Kooks X-pipe\/H-pipe exhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCalibration\u003c\/td\u003e\n\u003ctd\u003eHoonies recommends a tune matched to the completed header and exhaust installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eFAQs\u003c\/h2\u003e\u003ch3\u003eWill these join my factory exhaust on their own?\u003c\/h3\u003e\u003cp\u003eThey need the matching Kooks front connection pipes. To retain the factory rear exhaust, add the correct OEM adapters; a matching Kooks X-pipe or H-pipe system gives you another route for a fuller exhaust upgrade.\u003c\/p\u003e\u003ch3\u003eWhich size should I choose?\u003c\/h3\u003e\u003cp\u003eChoose for your engine specification and intended use. A standard or lightly modified engine does not automatically benefit from the largest primary. Tell us about the engine, any supercharger or turbo setup and how you use the car, and we can help you choose.\u003c\/p\u003e\u003ch3\u003eDo I need to buy O2 extensions separately?\u003c\/h3\u003e\u003cp\u003eThe appropriate extensions are included: one for 2015-2017 applications and two for 2018 onwards. Route them clear of the exhaust during fitting.\u003c\/p\u003e\u003ch3\u003eCan I use these on public roads?\u003c\/h3\u003e\u003cp\u003eThese three header options are for competition, off-road and track use only. They are not for use on public roads, and Kooks requires a competition-use waiver.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"1-3\/4\"","offer_id":55646900683094,"sku":"11512202","price":1461.96,"currency_code":"GBP","in_stock":true},{"title":"1-7\/8\"","offer_id":55646900715862,"sku":"11512402","price":1488.54,"currency_code":"GBP","in_stock":true},{"title":"2\"","offer_id":55646900748630,"sku":"11512602","price":1601.62,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/86d751943df544f186f924e4ffa968ce_bc3bea83-da12-4256-a9a1-2e97502cf41f.png?v=1791452486","url":"https:\/\/hooniesadrenaline.co.uk\/products\/kooks-2015-2026-ford-mustang-gt-headers","provider":"Hoonies Adrenaline","version":"1.0","type":"link"}