{"title":"Kooks Mustang GT Headers \u0026 Exhaust","description":null,"products":[{"product_id":"kooks-05-09-ford-mustang-gt-4-6l-3v-07-09-shelby-gt-500-full-3in-cat-back-exhaust","title":"Kooks 3\" SS Exhaust w\/SS tips. 2005-2009 Mustang GT\/GT500 (Requires Kooks X-Pipe) - 11304300","description":"Kooks 11304300 2005-2009 FORD MUSTANG GT\/SHELBY GT500 FULL 3\" CAT-BACK EXHAUST\u003cbr\u003e\u003cstrong\u003eDESCRIPTION\u003c\/strong\u003e\u003cbr\u003e2005-2009 Ford Mustang GT 4.6L\/GT500 5.4L Exhaust System\u003cbr\u003eFull 3\" Stainless Steel Exhaust System with Kooks Polished Race Mufflers and 4\" Slash Cut Polished Tips.\u003cbr\u003eFor Use With Kooks Headers and 3\" x 3\" X-Pipe or H-Pipe\u003cbr\u003eThese products are NOT legal for sale, installation, or use on a licensed vehicle in the state of California, and they do NOT meet CARB compliance\u003cbr\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":47080696807682,"sku":"KSH11304300","price":1542.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/a5f590ab5eb1c2141bc58b3db048d4fa_1.jpg?v=1784944481"},{"product_id":"kooks-05-10-ford-mustang-gt-manual-1-5-8in-x-2-1-2in-ss-long-tube-headers-and-oem-catted-ss-x-pipe","title":"KOOKS 2005-2010 Mustang GT 4.6L 3V Manual 1 5\/8 x 2 1\/2 Inch Stainless Steel Long Tube Headers \u0026 2 1\/2 x 2 1\/2 Inch OEM Catted Stainless Steel X-Pipe (2005-2010 Mustang GT) - 1131H020","description":"KOOKS 2005-2010 Mustang GT 4.6L 3V Manual 1 5\/8 x 2 1\/2 Inch Stainless Steel Long Tube Headers \u0026amp; 2 1\/2 x 2 1\/2 Inch OEM Catted Stainless Steel X-Pipe (2005-2010 Mustang GT) - 1131H020\u003cbr\u003e\u003cbr\u003e\u003cp\u003eKooks products are 100 Percent Manufactured in the USA and are made with the highest quality materials. Kooks Headers and Exhaust make the most power in the industry, specifically designed for best fitment, performance, and optimal sound. Kooks products are made of 304 Grade Stainless Steel and come with a limited lifetime warranty. Every Kooks product is dyno tested and race proven. Kooks is 3 generations of being family owned and operated.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStainless Steel Headers\u003c\/li\u003e\n\u003cli\u003eFor 2005-2010 Ford Mustang GT 4.6L 3V Manual\u003c\/li\u003e\n\u003cli\u003eIncludes 2.5 Inch x 21.2 Inch OEM\/Catted X-Pipe\u003c\/li\u003e\n\u003cli\u003e1 5\/8 Inch x 2.5 Inch Long tube headers\u003c\/li\u003e\n\u003cli\u003e18 Gauge\u003c\/li\u003e\n\u003cli\u003ePair\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eLethal Performance is proud to offer the entire line of KOOKS products!\u003cbr\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":47080696873218,"sku":"KSH1131H020","price":2433.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/ac9dd719fbb797e8ba15ede1b95cd3ba.jpg?v=1784944479"},{"product_id":"kooks-2015-ford-mustang-gt-3in-green-cat-dual-conn-pipes-that-go-to-oem-out-ss","title":"Kooks 3\" SS GREEN Catted Connnection Pipes. 2015-2023 Mustang GT 5.0L. - 11513300","description":"2015-2023 Ford Mustang GT 5.0L 4V \u003cbr\u003e3\"  Stainless Steel Green Catted Conn.\u003cbr\u003eConnects Kooks Headers to Kooks Exhaust.\u003cbr\u003eDOES NOT CONNECT TO OEM EXHAUST\u003cbr\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":47080696938754,"sku":"KSH11513300","price":1654.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/345720aa497f6aee76ec8dce874e7641_3.jpg?v=1784944479"},{"product_id":"kooks-15-24-ford-mustang-gt-v8-5-0l-1-7-8in-ss-headers-w-catted-connection-pipe","title":"Kooks 1-7\/8\" SS Headers \u0026 Catted Connection Kit (2015-2026 Mustang GT 5.0L) - 1151H422","description":"\u003cp\u003eKook’s Headers and Exhaust just released their ALL NEW 1-7\/8\" SS Headers \u0026amp; Catted Connection Kit for the 2026 Ford Mustang GT is here! With an all new design made specific for the 2026 model year, these headers are the industry’s first for the 2015-2026. With some of the highest quality exhaust products on the market today, Kooks’ Long Tube Header kit is sure to be the perfect fit for your 2015-2026 Mustang GT.\u003cbr\u003e\n\u003cbr\u003e\n\u003cstrong\u003eThese Kits Include:\u003cbr\u003e\u003c\/strong\u003e 1 7\/8\" x 3\" Stainless Steel Long Tube Headers\u003cbr\u003e\nStainless Steel Catted Connection Pipes for OEM Cat Back Connection\u003cbr\u003e\nAll O2 Bungs And Emissions Components Installed\u003cbr\u003e\nAll Hardware Required For Install Is Included\u003cbr\u003e\n\u003cbr\u003e\nThese products are not legal for sale, installation, or use on licensed vehicle in the state of California. And they do NOT meet CARB compliance\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":47080697069826,"sku":"KSH1151H422","price":2675.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/67ccaebb09e7f98bb34042154a4f8e27_1.jpg?v=1784944482"},{"product_id":"kooks-15-24-ford-mustang-gt-dark-horse-v8-5-0l-1-7-8in-ss-headers-w-green-catted-connection-pipe","title":"Kooks 1-7\/8\" SS Headers \u0026 GREEN Catted Connection Kit (2015-2026 Mustang GT \u0026 Dark Horse 5.0L) - 1151H432","description":"\u003cp\u003eKook’s Headers and Exhaust just released their ALL NEW 1-7\/8\" Stainless Steel Headers and GREEN Catted Connection Pipes for the 2015-2026 Ford Mustang GT is here! With an all new design made specific for the 2015-2026 model year, these headers are the industry’s first for the 2015-2026. With some of the highest quality exhaust products on the market today, Kooks’ Long Tube Header kit is sure to be the perfect fit for your 2015-2026 Mustang GT.\u003cbr\u003e\n\u003cbr\u003e\n\u003cstrong\u003eThese Kits Include:\u003cbr\u003e\u003c\/strong\u003e 1 7\/8\" x 3\" Stainless Steel Long Tube Headers\u003cbr\u003e\nStainless Steel GREEN Catted Connection Pipes for OEM Cat Back Connection\u003cbr\u003e\nKooks 49 State EPA Legal Ultra High Performance Green Cats\u003cbr\u003e\nAll O2 Bungs And Emissions Components Installed\u003cbr\u003e\nAll Hardware Required For Install Is Included\u003cbr\u003e\n\u003cbr\u003e\nThese products are not legal for sale, installation, or use on licensed vehicle in the state of California. And they do NOT meet CARB compliance\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":47080697135362,"sku":"KSH1151H432","price":3215.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/b3a18e1a4cdcfb765f82e1488d67ccff_1.jpg?v=1784944480"},{"product_id":"kooks-2024-mustang-gt-d-h-5-0l-4v-2in-x-3in-ss-headers-w-h-o-green-catted-connection-pipe","title":"Kooks 2\" SS Headers \u0026 H.O. GREEN Catted Connection Kit (2015-2026 Mustang GT 5.0L \/ 2026+ Dark Horse) - 1151H642","description":"\u003cdiv\u003e\u003cstrong\u003e2015-2026 Mustang GT\/Dark Horse 5.0L 4V 2\" x 3\" Stainless Headers w\/High Output GREEN Catted Connection Pipes and OEM Adapters.\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e304 Stainless Steel Construction\u003c\/div\u003e\n\u003cdiv\u003e3\/8\" Thick Laser Cut Flanges\u003c\/div\u003e\n\u003cdiv\u003e2\" Mandrel Bent Primaries\u003c\/div\u003e\n\u003cdiv\u003e3\" Collectors with Kooks' Patented Scavenging Spike\u003c\/div\u003e\n\u003cdiv\u003eDual Bolt Pattern Header Flange\u003c\/div\u003e\n\u003cdiv\u003eKooks High Output GREEN Cats EPA verified 300 Cell High Flow Catalytic Converters\u003c\/div\u003e\n\u003cdiv\u003eKooks High Output GREEN Cats are engineered to perform in Modern Muscle cars making more than 750 RWHP\u003c\/div\u003e\n\u003cdiv\u003eIncludes Gaskets, Oxygen Sensor Extension Harness, Clamps and Bolt Kit required for Installation\u003c\/div\u003e\n\u003cdiv\u003eNo additional parts required.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eKooks Headers and Exhaust has been the leader in the High Performance Exhaust Industry for over 50 Years! Since 1962, Kooks takes pride in offering the best Headers and complete exhaust systems for your street, race and off-road applications. We have won hundreds of championships and set countless records in the NHRA, IHRA, NMCA, NMRA, NASCAR, NASA, SCCA and many other racing organizations. Now with three generations of family leadership, we are proud to say that all of our products are handcrafted here in the USA and we are proud to still be independently owned and operated. And don't forget, \"Get Kookin with KOOKS!\"\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eManufactured In The USA. Kooks Uses T304 Aircraft Quality Stainless Steel. Kooks Products are Backed by a Limited Lifetime Warranty To the Original Purchaser. Kooks Products Are Dyno And Race Tested and Designed For Maximum Power.\u003c\/div\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":47080697200898,"sku":"KSH1151H642","price":3817.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/8a63c745b4af0595c579e7e1219ccd3d_3.jpg?v=1784944486"},{"product_id":"kooks-11-14-ford-mustang-gt-5-0l-4v-3in-x-2-3-4in-oem-cat-x-pipe-kooks-hdr-req","title":"Kooks 3\" x 2-3\/4\"(OEM) SS Catted X-Pipe. 2011-2014 Mustang GT 5.0L. - 11413200","description":"\u003cp\u003e\u003cstrong\u003eKooks 5.0L Mustang 3\" x 2-3\/4\" Catted X pipe (2011-2014 Mustang GT \/ 2012-2013 Boss 302)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e**For use with Kooks headers with 3\" Collectors**\u003c\/strong\u003e\u003cbr\u003e \u003cbr\u003e In addition to running Kooks header we suggest you compliment them with a matching X-Pipe. Kooks X-Pipes are specifically made for their headers and are available in Catted and Offroad Versions. Bolts up to factory cat-back exhaust system or any other aftermarket cat-back systems that use stock sized (2-3\/4\") connections.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e NOTE: MUST BE USED WITH KOOKS HEADERS\u003c\/strong\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":47205716787458,"sku":"KSH11413200","price":1680.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/ec4adf57a815f14827836d8303aab65c_3.jpg?v=1784947569"},{"product_id":"kooks-11-14-ford-mustang-gt-gt500-2-3-4in-x-3in-oem-cat-back-exhaust","title":"Kooks 3\" Cat-Back.  2011-2014 Mustang GT\/2011-2012 GT500 (Connnects to OEM) - 11404200","description":"\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003cbr\u003eAggressive Muscle Car Exhaust Note\u003cbr\u003e3\" Oval Race Mufflers\u003cbr\u003e3\" Stainless Steel Tubing with 2.75\" Inlet\u003cbr\u003e4\" Polished T304 Stainless Steel Tips\u003cbr\u003eDirect OEM Replacement Upgrade\u003cbr\u003eFits 2011-2014 GT, BOSS and 2011-2012 Shelby GT500 Mustangs\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eAggressive Exhaust Note.\u003c\/strong\u003e Give your V8 powered Mustang the loud aggressive exhaust note of a classic 60's muscle car with a Kooks Performance Cat-Back Exhaust system, that features oval stainless steel race mufflers.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDurable Stainless Steel Construction.\u003c\/strong\u003e Constructed from 3\" diameter stainless steel tubing for strength and corrosion resistance, this Kooks Performance Cat-Back exhaust system features two high flow 3\" Oval Race Mufflers that end with 4\" polished T304 stainless steel slant cut exhaust tips.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eApplication.\u003c\/strong\u003e This Kooks Performance Cat-Back Exhaust Kit is specifically designed to fit the 2011-2014 GT, 2012-2013 Boss 302 and 2011-2012 Shelby GT500 Mustangs.\u003cbr\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":47328599310594,"sku":"KSH11404200","price":1560.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/f1243187233d5182f6b5501c76fe653a.jpg?v=1784947735"},{"product_id":"kooks-99-04-ford-mustang-gt-cobra-3in-in-x-2-1-2in-oem-out-cat-ss-x-pipe-kooks-hdr-req","title":"Kooks 3\" x 2-1\/2\" SS Catted X-Pipe. 1999-2004 Mustang. (Connects to OEM) - 11203250","description":"\u003cp\u003e\u003cstrong\u003eKooks 99-04 Mustang 3\" Inlet w\/ 3\" Tubing 2.5\" Outlet Catted X Pipe\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eNew from Kooks is another midpipe option to run with your Kooks headers. This X-Pipe is for Kooks headers using 3\" Collectors. It has a 3\" Inlet and utilizes 3\" tubing all the way to the rear of the pipe where it necks down to 2.5\" to mate with your stock or aftermarket 2.5\" catback.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eUses High Flow Catalytic Convertors and Made from T-304 stainless steel.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e NOTE: MUST BE USED WITH KOOKS HEADERS\u003c\/strong\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":47947119296770,"sku":"KSH11203250","price":1737.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/229c64cf2cb4057c91cb11ae4c6bbcbb_6.jpg?v=1784979968"},{"product_id":"kooks-05-10-ford-mustang-gt-2-1-2in-x-2-1-2in-oem-exhaust-green-cat-x-pipe","title":"Kooks 2-1\/2\" SS GREEN Catted X-Pipe.  2005-2010 Mustang GT 4.6L 3V. - 11313300","description":"\u003cp\u003e\u003cstrong\u003eKooks 05-2010 Mustang GT 2-1\/2\" Stainless Steel X-Pipe with \"GREEN\" Cats\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e**Replaces Stock Mid-Pipe**\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eAll new from Kooks is this fully stainless steel X-Pipe which replaces the restrictive stock mid-pipe. With the addition of this pipe you will not only enhance the performance of your 05-09 GT but also the sound. GREEN cats work with factory tuning and will not trip your check engine light.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":47947119427842,"sku":"KSH11313300","price":1747.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/38f705a0a7e58f509465095944bf87da.jpg?v=1784979963"},{"product_id":"kooks-05-10-ford-mustang-gt-4-6l-3v-auto-manual-2-1-2in-x-2-1-2in-oem-cat-h-pipe-kooks-hdr-req","title":"Kooks 2-1\/2\" SS Catted H-Pipe.  2005-2010 Mustang GT 4.6L 3V. - 11313500","description":"\u003cp\u003e\u003cstrong\u003eKooks 05-2010 Mustang GT 2-1\/2\" Stainless Steel Catted H-Pipe\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe Kooks H-Pipe is to be used only with Kooks longtube headers. They're made from 2.5\" T-304 stainless steel.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e NOTE: MUST BE USED WITH KOOKS HEADERS\u003c\/strong\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":47947119493378,"sku":"KSH11313500","price":1311.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/d28e23b97c3735f6422ce3428b6505ee_3.jpg?v=1784979960"},{"product_id":"kooks-05-10-ford-mustang-gt-2-1-2in-x-2-1-2in-oem-exhaust-green-cat-h-pipe","title":"Kooks 2-1\/2\" SS GREEN Catted H-Pipe.  2005-2010 Mustang GT 4.6L 3V. - 11313600","description":"\u003cp\u003e\u003cstrong\u003eKooks 2005-2010 11313600 FORD MUSTANG GT 2 1\/2\" GREEN CATTED H PIPE 4.6L\u003c\/strong\u003e\u003c\/p\u003eDESCRIPTION\u003cbr\u003e2 1\/2\" Stainless Steel GREEN Catted H Pipe\u003cbr\u003eIncludes Kooks Ultra High Performance Green Cats\u003cbr\u003e49 State EPA approved Catalytic Converter\u003cbr\u003eNo Tuning Required and No Check Engine Lights\u003cbr\u003e2 1\/2\" Outlet For Use With OEM Exhaust\u003cbr\u003eMust Be Used With Kooks Long Tube Header 1131200 or 11312010\u003cbr\u003eThese products are not legal for sale, installation, or use on licensed vehicle in the state of California. And they do NOT meet CARB compliance.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e NOTE: MUST BE USED WITH KOOKS HEADERS\u003c\/strong\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":47947119591682,"sku":"KSH11313600","price":1851.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/18892d5f2d1a09d9fbb5aefae9be80f3_3.jpg?v=1784979970"},{"product_id":"kooks-05-10-ford-mustang-gt-shelby-gt-bullitt-1-5-8-x-2-1-2-3v-header-green-catted-x-pipe-kit","title":"Kooks 1-5\/8\" Header and GREEN (X) Connection Kit. 2005-2010 Mustang GT 4.6L 3V - 1131H030","description":"Kooks 1-5\/8\" Header and GREEN (X) Connection Kit. 2005-2010 Mustang GT 4.6L 3V - 1131H030\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFitment\u003c\/b\u003e - 2005-2010 Ford Mustang GT 4.6L V8, 2007-2008 Ford Mustang Shelby GT 4.6L V8, 2008-2009 Ford Mustang Bullitt 4.6L V8\u003cbr\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":47947119657218,"sku":"KSH1131H030","price":2973.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/7cf458b82d30863cd09158d25faa6c69_4.jpg?v=1784979960"},{"product_id":"kooks-05-10-ford-mustang-gt-shelby-gt-bullitt-1-5-8-x-2-1-2-3v-header-catted-h-pipe-kit","title":"Kooks 1-5\/8\" Header and Catted H Connection Kit (2005-2010 Mustang GT 4.6L 3V) - 1131H050","description":"\u003cp\u003e\u003cspan\u003eHeader and Connection Kit. 2005-2010 Ford Mustang GT 4.6L 3V. Includes 1-5\/8\" x 2-1\/2\" Stainless Steel Long Tube Headers \u0026amp; 2-1\/2\" x 2-1\/2\" (OEM) Catted Stainless Steel H-Pipe.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cspan\u003eKooks Headers and Exhaust has been the leader in the High Performance Exhaust Industry for over 50 Years! Since 1962, Kooks takes pride in offering the best Headers and complete exhaust systems for your street, race and off-road applications. We have won hundreds of championships and set countless records in the NHRA, IHRA, NMCA, NMRA, NASCAR, NASA, SCCA and many other racing organizations. Now with three generations of family leadership, we are proud to say that all of our products are handcrafted here in the USA and we are proud to still be independently owned and operated. And don't forget, \"Get Kookin with KOOKS!\"\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eManufactured In The USA. Kooks Uses T304 Aircraft Quality Stainless Steel. Kooks Products are Backed by a Limited Lifetime Warranty To the Original Purchaser. Kooks Products Are Dyno And Race Tested and Designed For Maximum Power.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":47947119755522,"sku":"KSH1131H050","price":2537.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/3e6ee7f385e13898f2a7494dfb6dd107_3.jpg?v=1784979970"},{"product_id":"kooks-05-10-ford-mustang-gt-shelby-gt-bullitt-1-5-8-x-2-1-2-3v-header-green-catted-h-pipe-kit","title":"Kooks 1-5\/8\" Header and GREEN (H) Connection Kit. 2005-2010 Mustang GT 4.6L 3V. - 1131H060","description":"Kooks 1-5\/8\" Header and GREEN (H) Connection Kit. 2005-2010 Mustang GT 4.6L 3V. - 1131H060\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFitment\u003c\/b\u003e - 2005-2010 Ford Mustang GT 4.6L V8, 2007-2008 Ford Mustang Shelby GT 4.6L V8, 2008-2009 Ford Mustang Bullitt 4.6L V8\u003cbr\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":47947119853826,"sku":"KSH1131H060","price":3077.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/3e6ee7f385e13898f2a7494dfb6dd107_4.jpg?v=1784979968"},{"product_id":"kooks-11-14-ford-mustang-gt-5-0l-4v-2-3-4in-x-3in-oem-axleback","title":"Kooks 3\" Axle-Back.  2011-2014 Mustang GT\/2011-2012 GT500 (Connnects to OEM) - 11406600","description":"\u003cp\u003e\u003cstrong\u003eKooks 5.0L Mustang Axle-Back Exhaust System\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e3\"Kooks Exhaust- Axleback Exhaust.  Connects to the Factory Over the Axle-Pipe and Delivers a Nice Deep Rumble. 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Utilizes a new catalytic converter design that will not trip your Check Engine Light.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e NOTE: MUST BE USED WITH KOOKS HEADERS\u003c\/strong\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":47947120673026,"sku":"KSH11413600","price":2262.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/a4cfc316396ca4ccc50527f24189bce5_2.jpg?v=1784979979"},{"product_id":"kooks-2015-2017-mustang-gt-3in-high-flow-cat-conn-pipes-1151h420","title":"Kooks 3\" SS Catted Connnection Pipes. 2015-2023 Mustang GT 5.0L. - 11513200","description":"2015-2023 Ford Mustang GT 5.0L 4V \u003cbr\u003e3\"  Stainless Steel Catted Conn.\u003cbr\u003eConnects Kooks Headers to Kooks Exhaust.\u003cbr\u003eDOES NOT CONNECT TO OEM EXHAUST  STANDARD RACE CATS NOT FOR USE IN FORCED INDUCTION APPLICATIONS\u003cbr\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":47947121852674,"sku":"KSH11513200","price":1114.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/345720aa497f6aee76ec8dce874e7641_2.jpg?v=1784979981"},{"product_id":"kooks-15-20-ford-mustang-gt-5-0l-3in-ss-green-catted-connection-pipes","title":"Kooks 3\" SS Green Catted Connection Pipes (2015-2026 Mustang GT 5.0L \/ 2020-2022 Shelby GT500) - 11513400","description":"\u003cp\u003e\u003cstrong\u003e2015-2022 Ford Mustang GT 5.0L 4V. 3\" Stainless Steel High Output GREEN Catted Front Connection pipes.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e3\" 16GA 304 Stainless Steel construction\u003c\/p\u003e\n\u003cp\u003eBall and socket style connection to Headers\u003c\/p\u003e\n\u003cp\u003eKooks High Output GREEN Cats feature a 4-1\/2\" 300 Cell High Flow Substrate\u003c\/p\u003e\n\u003cp\u003eDoes not Include Clamps\u003c\/p\u003e\n\u003cp\u003eRequires Kooks Headers and OEM Adapters or KOOKS Connection-Back Exhaust\u003c\/p\u003e\n\u003cp\u003eDOES NOT CONNECT TO OEM EXHAUST\u003c\/p\u003e\n\u003cp\u003eKOOKS GREEN Cats are suitable for use with forced induction\u003c\/p\u003e\n\u003cp\u003eKooks Headers and Exhaust has been the leader in the High Performance Exhaust Industry for over 50 Years! Since 1962, Kooks takes pride in offering the best Headers and complete exhaust systems for your street, race and off-road applications. We have won hundreds of championships and set countless records in the NHRA, IHRA, NMCA, NMRA, NASCAR, NASA, SCCA and many other racing organizations. Now with three generations of family leadership, we are proud to say that all of our products are handcrafted here in the USA and we are proud to still be independently owned and operated. And don't forget, \"Get Kookin with KOOKS!\"\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eManufactured In The USA. Kooks Uses T304 Aircraft Quality Stainless Steel. Kooks Products are Backed by a Limited Lifetime Warranty To the Original Purchaser. Kooks Products Are Dyno And Race Tested and Designed For Maximum Power.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":47947121918210,"sku":"KSH11513400","price":2149.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/44d205fe1be2b565c47c09f3509b4eda_2.jpg?v=1784979979"},{"product_id":"kooks-15-mustang-5-0l-4v-2in-x-3in-ss-headers-w-green-catted-oem-connection-pipe","title":"Kooks 15+ Mustang 5.0L 4V 2in x 3in SS Headers w\/Green Catted OEM Connection Pipe","description":"Kooks Headers and Exhaust has been the leader in the High Performance Exhaust Industry for over 50 Years!  Since 1962, Kooks takes pride in offering the best Headers and complete exhaust systems for your street, race and off-road applications.  We have won hundreds of championships and set countless records in the NHRA, IHRA, NMCA, NMRA, NASCAR, NASA, SCCA and many other racing organizations.  Now with three generations of family leadership, we are proud to say that all of our products are handcrafted here in the USA and we are proud to still be independently owned and operated.  And don't forget, \"Get Kookin with KOOKS!\"","brand":"Kooks","offers":[{"title":"Default Title","offer_id":47947122508034,"sku":"KSH1151H631","price":3156.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/38b9c40ab3b85f20c1b26ac4fdc84e92.jpg?v=1780566611"},{"product_id":"kooks-ford-2024-mustang-gt-d-h-5-0l-2in-stainless-headers-green-catted-conn-kit","title":"Kooks 2\" SS Headers \u0026 GREEN Catted Connection Kit (2015-2026 Mustang GT 5.0L \/ 2026+ Dark Horse) - 1151H632","description":"\u003cdiv\u003e\n\u003cstrong\u003e2015-\u003c\/strong\u003e\u003cstrong\u003e2026 Mustang GT\/Dark Horse 5.0L 4V 2\" x 3\" Stainless Headers w\/ GREEN Catted Connection Pipes and OEM Adapters.\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e304 Stainless Steel Construction\u003c\/div\u003e\n\u003cdiv\u003e3\/8\" Thick Laser Cut Flanges\u003c\/div\u003e\n\u003cdiv\u003e2\" Mandrel Bent Primaries\u003c\/div\u003e\n\u003cdiv\u003e3\" Collectors with Kooks' Patented Scavenging Spike\u003c\/div\u003e\n\u003cdiv\u003eDual Bolt Pattern Header Flange\u003c\/div\u003e\n\u003cdiv\u003eKooks GREEN Cats EPA verified 400 Cell High Flow Catalytic Converters\u003c\/div\u003e\n\u003cdiv\u003eKooks GREEN Cats are engineered to perform in Modern Muscle cars up to 750 RWHP\u003c\/div\u003e\n\u003cdiv\u003eIncludes Gaskets, Oxygen Sensor Extension Harness, Clamps and Bolt Kit required for Installation\u003c\/div\u003e\n\u003cdiv\u003eNo additional parts required.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eKooks Headers and Exhaust has been the leader in the High Performance Exhaust Industry for over 50 Years! 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Kooks Products Are Dyno And Race Tested and Designed For Maximum Power.\u003c\/div\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":47947122606338,"sku":"KSH1151H632","price":3322.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/8a63c745b4af0595c579e7e1219ccd3d_2.jpg?v=1784979985"},{"product_id":"kooks-96-04-mustang-gt-1-3-4-longtube-headers-3-0-collector","title":"Kooks 1-3\/4\" x 3\" SS Headers.  1996-2004 4.6L 2V Mustang. No EGR Fitting. - 11212200","description":"\u003cp\u003e\u003cstrong\u003eKooks 96-04 Mustang GT 1-3\/4\" Longtube Headers (3.0\" Collector)\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eLethal Performance is now proud to offer you the premier header set up available for your GT. Kooks headers are fully stainless steel and made for a perfect fit. Let your engine breath and produce the power that is held back by the restrictive stock exhaust. These headers will not only increase performance but also make the muscle car sound that a mustang should make.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":47954754109698,"sku":"KOO-11212200","price":1412.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/dec0ab4c500e26ac759052fe35aada71_2.jpg?v=1785025051"},{"product_id":"kooks-96-04-mustang-4v-1-3-4-stainless-steel-longtube-headers-3-collector","title":"Kooks 1-3\/4\" x 3\"  SS Headers. 1996-2004 4.6L 4V Mustang. 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It has a 3\" Inlet and utilizes 3\" tubing all the way to the rear of the pipe where it necks down to 2.5\" to mate with your stock or aftermarket 2.5\" catback. \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eMade from T-304 stainless steel. \u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e NOTE: MUST BE USED WITH KOOKS HEADERS\u003c\/strong\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":47954764267778,"sku":"KOO-11203150","price":1467.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/a77e64b0d1f8e03953e15763f6eefc25_2.jpg?v=1785025067"},{"product_id":"kooks-05-2010-mustang-gt-1-5-8-headers-with-2-5-collectors-auto-trans","title":"Kooks 1-5\/8\" x 2-1\/2\" SS Headers. 2005-2010 Mustang GT 4.6L 3V. 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If you guys don't know Kooks has been bending and welding custom  headers for over 45 years! The end result is one of the nicest works of  art that you could ever imagine putting on your car.  The Kooks Custom Headers for the 5.0L Mustang are Mandrel Bent out of T-304  Stainless Steel and welded with one thing in mind..\"Precision\"\u003cbr\u003e\u003cbr\u003eThe 5.0L Mustang Headers are also made with 1-7\/8\" Primaries which all  flow into a 3\" Merge Collector to mate with your choice of X-Pipe from Kooks.\u003cbr\u003e\u003cbr\u003eNot only do these headers add  performance but the sound of your 5.0L will be turned into what it  should be. A deep muscle car sound is what you can expect from these bad  boys!!\u003cbr\u003e\u003cbr\u003eThe Kooks header kit comes complete with all necessary hardware!\u003cbr\u003e\u003cbr\u003eIf you have any questions regarding any of Kooks exhaust products please  feel to call your Lethal Performance Sales Associate today.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":48141311410434,"sku":"KOO-11412400","price":1294.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/78a95ca017121337a90a122ffa7212a1_1.jpg?v=1784983423"},{"product_id":"kooks-3-x-2-3-4-oem-ss-off-road-race-only-h-pipe-2011-2014-mustang-gt-5-0l-11413400","title":"Kooks 3\" x 2-3\/4\"(OEM) SS Off-Road Race Only H-Pipe. 2011-2014 Mustang GT 5.0L. - 11413400","description":"\u003cp\u003e\u003cstrong\u003eKooks 5.0L Mustang 3\" x 2-3\/4\" Off Road H pipe\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e**For use with Kooks headers with 3\" Collectors**\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eIn addition to running Kooks header we suggest you compliment them with a  matching H-Pipe. 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A deep muscle car sound is what you can expect from these bad  boys!!\u003cbr\u003e\u003cbr\u003eThe Kooks header kit comes complete with all necessary hardware and 02  extensions!\u003cbr\u003e\u003cbr\u003eIf you have any questions regarding any of Kooks exhaust products please  feel to call your Lethal Performance Sales Associate today.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":48141311607042,"sku":"KOO-11412200","price":1178.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/0e4ef406d50820ec21407c32e95b2e1b.jpg?v=1784983424"},{"product_id":"kooks-3-x-2-3-4-oem-ss-off-road-race-only-x-pipe-2011-2014-mustang-gt-5-0l-11413100","title":"Kooks 3\" x 2-3\/4\"(OEM) SS Off-Road Race Only X-Pipe. 2011-2014 Mustang GT 5.0L. - 11413100","description":"\u003cp\u003e\u003cstrong\u003eKooks 5.0L Mustang 3\" x 2-3\/4\" Off Road X pipe\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e**For use with Kooks headers with 3\" Collectors**\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eIn addition to running Kooks header we suggest you compliment them with a  matching X-Pipe. Kooks X-Pipes are specifically made for their headers  and are available in Catted and Offroad Versions. Bolts up to factory cat-back exahust system or any other aftermarket cat-back systems that use stock sized (2-3\/4\") connections.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e NOTE: MUST BE USED WITH KOOKS HEADERS\u003c\/strong\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":48141311901954,"sku":"KOO-11413100","price":1410.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/544893b571341e350a4f80d8bfeefd7e_1.jpg?v=1784983422"},{"product_id":"kooks-05-2010-mustang-gt-1-5-8-headers-with-2-5-collectors-manual-trans","title":"Kooks 1-5\/8\" x 2-1\/2\" SS Headers. 2005-2010 Mustang GT 4.6L 3V. (Manual Trans.) - 11312000","description":"\u003cp\u003e\u003cstrong\u003eKooks 05-2010 Mustang GT 1-5\/8\" Headers with 2.5\" Collectors (Manual Trans)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAll new from Kooks for your 3V motor are these 1-5\/8\" Headers made with Stainless Steel designed to drastically inprove the performance of your car over the restrictive stock exhaust. \u003cbr\u003e \u003cbr\u003e \u003cstrong\u003eKooks Header Kit Includes:\u003cbr\u003e \u003cbr\u003e \u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e1-5\/8\" Headers\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e Specific for Manual Transmissions\u003cbr\u003e \u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eo2 Extensions\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHardware\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":48141323960578,"sku":"KOO-11312000","price":1157.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/8d16248809c33dc735859fd5bc525ec9_1.jpg?v=1784983487"},{"product_id":"kooks-3-x-3-ss-off-road-race-only-x-pipe-1999-2004-mustang-does-not-connect-to-oem-11203160","title":"Kooks 3\" x 3\" SS Off-Road Race Only X-Pipe. 1999-2004 Mustang. (Does Not Connect to OEM) - 11203160","description":"\u003cp\u003e\u003cstrong\u003eKooks 99-04 Mustang 3\" Inlet w\/3\" Outlet Offroad XPipe\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eNew from Kooks is another midpipe option to run with your Kooks headers. This X-Pipe is for Kooks headers using 3\" Collectors. It has a 3\" Inlet and utilizes 3\" tubing all the way to the rear of the pipe to bolt up to a 3\" catback. \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eMade from T-304 stainless steel. \u003c\/p\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":48141324026114,"sku":"KOO-11203160","price":1579.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/94c2c9bfe18666c3d28b7e9a732b5315.jpg?v=1784983488"},{"product_id":"kooks-3-x-3-ss-off-road-race-only-x-pipe-2005-2010-mustang-gt-4-6l-3v-11313120","title":"Kooks 3\" x 3\" SS Off-Road Race Only X-Pipe.  2005-2010 Mustang GT 4.6L 3V. - 11313120","description":"\u003cp\u003e\u003cstrong\u003eKooks 05-2010 Mustang GT 3\" Stainless Offroad X-Pipe\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e**NOTE: Will only work on the 1-3\/4\" 3V Headers with 3\" Collector**\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIf you're looking to run the big 1-3\/4\" headers from Kooks you'll need this 3\" X-pipe in order adapt the headers to a 3\" catback.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eOffroad Use Only\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":48141324353794,"sku":"KOO-11313120","price":1202.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/18d22033b3f07c39d0d3037ca3b655c8_1.jpg?v=1784983484"},{"product_id":"kooks-2011-2014-ford-mustang-gt-boss-302-laguna-seca-1-7-8-shorty-headers","title":"Kooks 1-7\/8\" x 3\" SS Shorty Headers. 2011-2014 Mustang 5.0L (Connects to OEM Cats) - 11401400","description":"\u003cp\u003eNew from Kooks Custom Headers are their stainless steel shorty headers for the 2011+ Mustang 5.0L's. These shorty headers are a direct replacement for the stock manifolds and feature individual primaries that are 1-7\/8\" in diameter for high flow and big power! The headers also include the hardware for installation.\u003c\/p\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":48141329826050,"sku":"KOO-11401400","price":1311.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/533dcb8aa14ea878a0a62656740dcd88.jpg?v=1784983520"},{"product_id":"kooks-3-x-2-1-2-ss-off-road-race-only-h-pipe-2005-2010-mustang-gt-4-6l-3v-11313410","title":"Kooks 3\" x 2-1\/2\" SS Off-Road Race Only H-Pipe.  2005-2010 Mustang GT 4.6L 3V. - 11313410","description":"\u003cp\u003e\u003cstrong\u003eKooks 05-2010 Mustang GT 3\" x 2-1\/2\" Stainless Steel Offroad H-Pipe\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe Kooks H-Pipe is to be used only with Kooks longtube headers. They're made from 3\" x 2.5\" T-304 stainless steel. Bolts to stock diameter (2-1\/2\") cat-back systems. \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e NOTE: MUST BE USED WITH KOOKS HEADERS\u003c\/strong\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":48141332021506,"sku":"KOO-11313410","price":1296.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/b279dc7fa9b6e0f863ea829b30662444_2.jpg?v=1784983531"},{"product_id":"kooks-11412600-2-long-tube-headers-2011-2014-mustang-gt-2012-2013-boss","title":"Kooks 2\" x 3\" SS Headers. 2011-2014 Mustang GT 5.0L. - 11412600","description":"2\" x 3\" Stainless Steel Long Tube Headers\u003cbr\u003eMust Be Used With Kooks X Pipe or H Pipe\u003cbr\u003eAll O2 Bungs And Emissions Components Installed\u003cbr\u003eAll Hardware Required For Install Is Included \u003cbr\u003eThese products are not legal for sale, installation, or use on licensed vehicle in the state of California. And they do NOT meet CARB compliance","brand":"Kooks","offers":[{"title":"Default Title","offer_id":48141344407810,"sku":"KOO-11412600","price":1682.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/c305054ed31a09b0702a37b18005ebec.jpg?v=1784983596"},{"product_id":"kooks-full-3-stainless-steel-connection-adapter-2015-2026-mustang-gt-5-0l-part-11513010","title":"Kooks Full 3\" Stainless Steel Connection Adapter (2015–2026 Mustang GT 5.0L) – Part #11513010","description":"\u003cdiv class=\"description\"\u003e\n\u003cp\u003eTuning your Mustang’s exhaust flow doesn’t always require a full cat-back swap—sometimes it’s about making the \u003cstrong\u003eright connections\u003c\/strong\u003e. This Kooks Full 3\" Stainless Steel Connection Adapter bridges the gap between your factory exhaust system and your upgraded Kooks headers or mid-pipes. Designed to adapt a 3\" aftermarket setup to your stock or modified cat-back, this is a must-have if you’re piecing together a custom system or upgrading in stages.\u003c\/p\u003e\n\u003ch2\u003eWhat It Solves\u003c\/h2\u003e\n\u003cp\u003eIf you're running full 3\" \u003cstrong\u003eKooks long tube headers\u003c\/strong\u003e or mid-pipes but still rocking the stock-style rear exhaust, you’re dealing with fitment headaches and restriction. This adapter eliminates those mismatched connection points and ensures smooth, unrestricted flow between your performance parts and stock-style components.\u003c\/p\u003e\n\u003ch2\u003eWhy It's Better Than Stock\u003c\/h2\u003e\n\u003cp\u003eStock adapters are built for mass production, not performance. This piece is crafted from \u003cstrong\u003ehigh-quality stainless\u003c\/strong\u003e, allowing for a tighter seal, improved durability, and better flow characteristics. It’s a plug-and-play fix that keeps your system tight and free of leaks, while helping you get the most out of your bolt-ons.\u003c\/p\u003e\n\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull 3\" Diameter\u003c\/strong\u003e: Maintains flow from your performance exhaust all the way to the rear—no more choking down to stock sizing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e304 Stainless Steel Construction\u003c\/strong\u003e: Corrosion-resistant and built to handle track abuse or daily driving without breaking a sweat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMandrel-Bent Transitions\u003c\/strong\u003e: Smooth internal surfaces mean less turbulence and more power to the wheels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Compatibility with Kooks Exhaust Systems\u003c\/strong\u003e: Designed to work hand-in-hand with \u003ca href=\"https:\/\/www.lethalperformance.com\/shop-now\/vehicle-selector\/ford-mustang-v8-gt\/2026-2025-mustang-gt\/exhaust\/catbacks\/kooks\" target=\"_blank\"\u003eKooks cat-back systems for the 2026-2025 Mustang GT\u003c\/a\u003e, ensuring a clean, leak-free fit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: T304 stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight Savings\u003c\/strong\u003e: Minimal, but helps maintain consistent pipe diameter for better exhaust scavenging\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustability\u003c\/strong\u003e: Fixed fitment, not adjustable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdditional Required Components\u003c\/strong\u003e: Only necessary if connecting non-Kooks or non-OEM cat-back systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: \u003cstrong\u003e11513010\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho This Is For\u003c\/h2\u003e\n\u003cp\u003eThis adapter is ideal for Mustang owners who’ve already invested in \u003cstrong\u003eKooks long tube headers or mid-pipes\u003c\/strong\u003e, but haven’t yet upgraded to a full cat-back. It’s also perfect for anyone building a staggered exhaust setup or replacing just part of the system.\u003c\/p\u003e\n\u003cblockquote\u003eHeads up: If you’re planning on going full Kooks, it may be better to skip this and go straight for a complete \u003ca href=\"https:\/\/www.lethalperformance.com\/shop-now\/vehicle-selector\/ford-mustang-v8-gt\/2026-2025-mustang-gt\/exhaust\/catbacks\" target=\"_blank\"\u003e2026–2025 Mustang GT cat-back exhaust system\u003c\/a\u003e.\u003c\/blockquote\u003e\n\u003ch2\u003eFitment \u0026amp; Installation Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle Compatibility\u003c\/strong\u003e: 2015–2026 Ford Mustang GT 5.0L (S550 \u0026amp; S650 platforms)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Fitment or Requires Modifications\u003c\/strong\u003e: Direct bolt-on when used with Kooks components and factory-style cat-backs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Requirements\u003c\/strong\u003e:\n\u003cul\u003e\n\u003cli\u003eRequires proper alignment with your existing exhaust setup\u003c\/li\u003e\n\u003cli\u003eNo tuning or calibration needed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional installation recommended\u003c\/strong\u003e if you're not familiar with exhaust fitment or sealing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eExplicit Warnings\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThis adapter is not compatible with all aftermarket systems.\u003c\/strong\u003e It’s specifically designed to match Kooks full 3\" headers\/mid-pipes with stock or stock-style cat-backs.\u003c\/li\u003e\n\u003cli\u003eIf you're upgrading to a full Kooks system, skip the adapter and go with a full cat-back for proper fit and flow.\u003c\/li\u003e\n\u003cli\u003eWill not fit GT350, GT500, or EcoBoost models.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you’re putting together a performance system piece by piece, this adapter keeps things simple and effective without cutting corners—or your exhaust.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":48141364887810,"sku":"KOO-11513010","price":66.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/a670654170224a9ab65f167990551529_1.jpg?v=1784983714"},{"product_id":"kooks-96-04-mustang-4v-1-7-8-longtube-headers-with-3-collector","title":"Kooks 1-7\/8\" x 3\"  SS Headers. 1996-2004 4.6L 4V Mustang. No EGR Fitting. - 11222400","description":"\u003cp\u003e1 7\/8\" x 3\" Stainless Steel Longtube Headers\u003cbr\u003e\nMust be used with Kooks Connection Pipes\u003cbr\u003e\nIncludes O2 Extensions And All Necessary Hardware\u003cbr\u003e\nEGR Is Not Included But Can Be Added For $75.00\u003cbr\u003e\nDoes not include SMOG connections for 96-98 cars\u003cbr\u003e\nThese products are not legal for sale, installation, or use on licensed vehicle in the state of California. And they do NOT meet CARB compliance\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eNote : May require Flaming River or other aftermarket steering shaft\u003c\/strong\u003e\u003c\/div\u003e","brand":"Kooks","offers":[{"title":"Default Title","offer_id":48150102638850,"sku":"KOO-11222400","price":1678.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/a1996aedfdcdea1cb2db6b565a90b86b_3.jpg?v=1785025165"}],"url":"https:\/\/www.lethalperformance.com\/collections\/kooks-mustang.oembed","provider":"Lethal Performance","version":"1.0","type":"link"}