{"product":{"id":11350209691990,"title":"Kooks Mustang GT 5.0 X \/ H-Pipe Connections (2011-2014)","body_html":"\u003ch2\u003eChoose the crossover character for your Coyote Mustang\u003c\/h2\u003e\u003cp\u003eFinish your Kooks header installation with the X-pipe or H-pipe arrangement you prefer. These 3\" stainless connections offer Competition Only, Performance or GREEN choices and transition to the 2-3\/4\" OEM rear exhaust on your 2011-2014 Mustang GT.\u003c\/p\u003e\u003cp\u003eSKUs: 11413100, 11413200, 11413300, 11413400, 11413500, 11413600\u003c\/p\u003e\u003ch2\u003eChoose the crossover and cats together\u003c\/h2\u003e\u003cp\u003eAn X generally favours a smoother, higher-pitched character; an H generally favours a deeper tone. The rear mufflers still shape the result. Performance cats use a 300-cell specification here and suit naturally aspirated engines; GREEN uses 400-cell cats and supports forced induction.\u003c\/p\u003e\u003ch2\u003eKnow which clamps stay on the car\u003c\/h2\u003e\u003cp\u003eThe 16-gauge 304 stainless pipes have ball-and-socket front joints for matching Kooks long tube headers. Front fitting clamps are included. The 2-3\/4\" rear outlets reuse the OEM clamps, which are not included in the purchase. These choices have no side-pipe 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\u003e11413100\u003c\/td\u003e\n\u003ctd\u003eCat Type: Comp. Only; Crossover Type: X Pipe; Side Pipe Connections: No\u003c\/td\u003e\n\u003ctd\u003eCompetition Only X-pipe; Front clamps included; rear OEM clamps reused, not included\u003c\/td\u003e\n\u003ctd\u003eUncatted; competition use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11413200\u003c\/td\u003e\n\u003ctd\u003eCat Type: Performance Cats; Crossover Type: X Pipe; Side Pipe Connections: No\u003c\/td\u003e\n\u003ctd\u003ePerformance Cats X-pipe; Front clamps included; rear OEM clamps reused, not included\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11413300\u003c\/td\u003e\n\u003ctd\u003eCat Type: GREEN Cats; Crossover Type: X Pipe; Side Pipe Connections: No\u003c\/td\u003e\n\u003ctd\u003eGREEN Cats X-pipe; Front clamps included; rear OEM clamps reused, not 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\u003e11413400\u003c\/td\u003e\n\u003ctd\u003eCat Type: Comp. Only; Crossover Type: H Pipe; Side Pipe Connections: No\u003c\/td\u003e\n\u003ctd\u003eCompetition Only H-pipe; Front clamps included; rear OEM clamps reused, not included\u003c\/td\u003e\n\u003ctd\u003eUncatted; competition use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11413500\u003c\/td\u003e\n\u003ctd\u003eCat Type: Performance Cats; Crossover Type: H Pipe; Side Pipe Connections: No\u003c\/td\u003e\n\u003ctd\u003ePerformance Cats H-pipe; Front clamps included; rear OEM clamps reused, not included\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11413600\u003c\/td\u003e\n\u003ctd\u003eCat Type: GREEN Cats; Crossover Type: H Pipe; Side Pipe Connections: No\u003c\/td\u003e\n\u003ctd\u003eGREEN Cats H-pipe; Front clamps included; rear OEM clamps reused, not 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\u003eMatching products\u003c\/h2\u003e\u003cp\u003eThe \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/products\/kooks-2011-2014-ford-mustang-gt-5-0l-headers?variant=55646896718166\"\u003e2011-2014 Mustang GT long tube headers\u003c\/a\u003e provide the matching 3\" front connection for your chosen X-pipe or H-pipe.\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\u003e2011-2014\u003c\/td\u003e\n\u003ctd\u003eFord Mustang GT\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e11413100, 11413200, 11413300, 11413400, 11413500, 11413600\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\u003e11413100, 11413200, 11413300, 11413400, 11413500, 11413600\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2011-2014 Mustang GT 5.0L V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e3\" 16-gauge 304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeader joint\u003c\/td\u003e\n\u003ctd\u003eBall and socket; matching Kooks long tube headers required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrossover choices\u003c\/td\u003e\n\u003ctd\u003eX-pipe or H-pipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalyst choices\u003c\/td\u003e\n\u003ctd\u003eCompetition Only; Performance 300 cell; GREEN 400 cell\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\u003eIncluded \/ reused clamps\u003c\/td\u003e\n\u003ctd\u003eFront clamps included; rear OEM clamps reused and not included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSide-pipe connections\u003c\/td\u003e\n\u003ctd\u003eNone on the listed choices\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\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eAre the rear OEM clamps included?\u003c\/h3\u003e\u003cp\u003eNo. The rear connection reuses your OEM clamps. The front fitting clamps are supplied.\u003c\/p\u003e\u003ch3\u003eDo these include Boss-style side-pipe connections?\u003c\/h3\u003e\u003cp\u003eThe listed options have no side-pipe connections.\u003c\/p\u003e\u003ch3\u003eCan I choose an H-pipe with GREEN cats?\u003c\/h3\u003e\u003cp\u003eYes. 11413600 is the GREEN H-pipe choice.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003e11413100, 11413200, 11413400, 11413500: Competition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003cp\u003eThe competition-use waiver applies to 11413100, 11413400.\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 Pipes","created_at":"2026-10-08T10:41:13+01:00","handle":"kooks-2011-2014-ford-mustang-gt-5-0l-connection-pipes-52be6900","updated_at":"2026-10-11T14:33:13+01:00","published_at":"2026-10-09T13:41:52+01:00","template_suffix":null,"published_scope":"global","tags":"brand:kooks, cat:exhausts, dept:performance-parts, fits:ford-mustang, make:ford, type:exhaust-pipe","variants":[{"id":55646896947542,"product_id":11350209691990,"title":"Comp. Only \/ X Pipe \/ No","price":"1483.82","sku":"11413100","position":1,"compare_at_price":"","fulfillment_service":"manual","inventory_management":null,"option1":"Comp. Only","option2":"X Pipe","option3":"No","created_at":"2026-10-08T10:41:13+01:00","updated_at":"2026-10-11T14:33:13+01:00","taxable":true,"barcode":"842422162962","grams":9979,"image_id":null,"weight":9.979,"weight_unit":"kg","requires_shipping":true,"quantity_rule":{"min":1,"max":null,"increment":1},"price_currency":"GBP","compare_at_price_currency":"","quantity_price_breaks":[]},{"id":55646896980310,"product_id":11350209691990,"title":"Performance Cats \/ X Pipe \/ No","price":"1767.82","sku":"11413200","position":2,"compare_at_price":"","fulfillment_service":"manual","inventory_management":null,"option1":"Performance Cats","option2":"X Pipe","option3":"No","created_at":"2026-10-08T10:41:13+01:00","updated_at":"2026-10-11T14:33:13+01:00","taxable":true,"barcode":"842422162986","grams":11340,"image_id":null,"weight":11.34,"weight_unit":"kg","requires_shipping":true,"quantity_rule":{"min":1,"max":null,"increment":1},"price_currency":"GBP","compare_at_price_currency":"","quantity_price_breaks":[]},{"id":55646897013078,"product_id":11350209691990,"title":"GREEN Cats \/ X Pipe \/ No","price":"2335.80","sku":"11413300","position":3,"compare_at_price":"","fulfillment_service":"manual","inventory_management":null,"option1":"GREEN Cats","option2":"X Pipe","option3":"No","created_at":"2026-10-08T10:41:13+01:00","updated_at":"2026-10-11T14:33:13+01:00","taxable":true,"barcode":"842422135249","grams":11793,"image_id":null,"weight":11.793,"weight_unit":"kg","requires_shipping":true,"quantity_rule":{"min":1,"max":null,"increment":1},"price_currency":"GBP","compare_at_price_currency":"","quantity_price_breaks":[]},{"id":55646897045846,"product_id":11350209691990,"title":"Comp. Only \/ H Pipe \/ No","price":"1527.88","sku":"11413400","position":4,"compare_at_price":"","fulfillment_service":"manual","inventory_management":null,"option1":"Comp. Only","option2":"H Pipe","option3":"No","created_at":"2026-10-08T10:41:13+01:00","updated_at":"2026-10-11T14:33:13+01:00","taxable":true,"barcode":"842422135461","grams":9979,"image_id":null,"weight":9.979,"weight_unit":"kg","requires_shipping":true,"quantity_rule":{"min":1,"max":null,"increment":1},"price_currency":"GBP","compare_at_price_currency":"","quantity_price_breaks":[]},{"id":55646897078614,"product_id":11350209691990,"title":"Performance Cats \/ H Pipe \/ No","price":"1811.87","sku":"11413500","position":5,"compare_at_price":"","fulfillment_service":"manual","inventory_management":null,"option1":"Performance Cats","option2":"H Pipe","option3":"No","created_at":"2026-10-08T10:41:13+01:00","updated_at":"2026-10-11T14:33:13+01:00","taxable":true,"barcode":"842422135683","grams":12247,"image_id":null,"weight":12.247,"weight_unit":"kg","requires_shipping":true,"quantity_rule":{"min":1,"max":null,"increment":1},"price_currency":"GBP","compare_at_price_currency":"","quantity_price_breaks":[]},{"id":55646897111382,"product_id":11350209691990,"title":"GREEN Cats \/ H Pipe \/ No","price":"2379.86","sku":"11413600","position":6,"compare_at_price":"","fulfillment_service":"manual","inventory_management":null,"option1":"GREEN Cats","option2":"H Pipe","option3":"No","created_at":"2026-10-08T10:41:13+01:00","updated_at":"2026-10-11T14:33:13+01:00","taxable":true,"barcode":"842422135904","grams":12247,"image_id":null,"weight":12.247,"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":14512391717206,"product_id":11350209691990,"name":"Cat Type","position":1,"values":["Comp. 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