{"product":{"id":11350208250198,"title":"Kooks Shelby GT500 GREEN Header and Crossover Kits (2007-2010)","body_html":"\u003ch2\u003eGive your GT500 the exhaust character you want\u003c\/h2\u003e\u003cp\u003eUpgrade your supercharged 5.4-litre GT500 with Kooks headers and a GREEN catted crossover, while choosing the primary size and crossover style that suit your car. Both 1-3\/4\" and 1-7\/8\" headers are available with X-pipe or H-pipe connections to the OEM rear exhaust.\u003c\/p\u003e\u003cp\u003eSKUs: 1132H230, 1132H260, 1132H430, 1132H460\u003c\/p\u003e\u003ch2\u003eChoose the crossover you prefer\u003c\/h2\u003e\u003cp\u003eThe X-pipe merges the banks and generally gives a smoother, higher-pitched character. The H-pipe balances the banks through a connecting tube and is associated with a deeper muscle-car tone. Your rear silencers and the rest of the system influence the final sound too.\u003c\/p\u003e\u003ch2\u003eMatched to the earlier GT500\u003c\/h2\u003e\u003cp\u003eAll four combinations use 3\" collectors and a 2-1\/2\" rear outlet for the 2007-2010 factory interface. That rear connection differs from the later 2011-2014 GT500 kits, so choose the package around your generation as well as your desired primary size.\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\u003e1132H230\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-3\/4\"; Crossover Type: X Pipe\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\" headers;  X-pipe\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1132H260\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-3\/4\"; Crossover Type: H Pipe\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\" headers;  H-pipe\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1132H430\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Crossover Type: X Pipe\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers;  X-pipe\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1132H460\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Crossover Type: H Pipe\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers;  H-pipe\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\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\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\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\u003e2007-2010\u003c\/td\u003e\n\u003ctd\u003eFord Mustang Shelby GT500\u003c\/td\u003e\n\u003ctd\u003e5.4L V8\u003c\/td\u003e\n\u003ctd\u003e1132H230, 1132H260, 1132H430, 1132H460\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008-2009\u003c\/td\u003e\n\u003ctd\u003eFord Mustang Shelby GT500KR\u003c\/td\u003e\n\u003ctd\u003e5.4L V8\u003c\/td\u003e\n\u003ctd\u003e1132H230, 1132H260, 1132H430, 1132H460\u003c\/td\u003e\n\u003ctd\u003e\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\u003eSKUs\u003c\/td\u003e\n\u003ctd\u003e1132H230, 1132H260, 1132H430, 1132H460\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2007-2010 Shelby GT500, 5.4L supercharged V8\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\u003ePrimary choices\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\" or 1-7\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollectors\u003c\/td\u003e\n\u003ctd\u003e3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrossover choices\u003c\/td\u003e\n\u003ctd\u003eGREEN catted X-pipe or H-pipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003e2-1\/2\" OEM interface\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\u003eIs the catalyst the same in all four choices?\u003c\/h3\u003e\u003cp\u003eYes. These four packages use GREEN cats. They vary the primary size and X\/H crossover.\u003c\/p\u003e\u003ch3\u003eWill it use the later GT500 rear connection?\u003c\/h3\u003e\u003cp\u003eThe 2007-2010 kits use a 2-1\/2\" outlet. The later GT500 kits use a different OEM rear interface.\u003c\/p\u003e\u003ch3\u003eDo you recommend tuning with these headers?\u003c\/h3\u003e\u003cp\u003eWe recommend tuning with every header installation. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eTalk to us\u003c\/a\u003e about calibration for your vehicle, exhaust and other modifications.\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":"Header Kits","created_at":"2026-10-08T10:41:08+01:00","handle":"kooks-2007-2010-shelby-gt500-5-4l-header-connection-kits","updated_at":"2026-10-10T19:11:04+01:00","published_at":"2026-10-09T13:42:38+01:00","template_suffix":null,"published_scope":"global","tags":"brand:kooks, cat:exhausts, dept:performance-parts, fits:ford-mustang, make:ford, type:header-kit","variants":[{"id":55646895472982,"product_id":11350208250198,"title":"1-3\/4\" \/ X Pipe","price":"3687.57","sku":"1132H230","position":1,"compare_at_price":"","fulfillment_service":"manual","inventory_management":null,"option1":"1-3\/4\"","option2":"X Pipe","option3":null,"created_at":"2026-10-08T10:41:08+01:00","updated_at":"2026-10-10T19:11:04+01:00","taxable":true,"barcode":"842422179281","grams":25401,"image_id":null,"weight":25.401,"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":55646895505750,"product_id":11350208250198,"title":"1-3\/4\" \/ H Pipe","price":"3800.14","sku":"1132H260","position":2,"compare_at_price":"","fulfillment_service":"manual","inventory_management":null,"option1":"1-3\/4\"","option2":"H Pipe","option3":null,"created_at":"2026-10-08T10:41:08+01:00","updated_at":"2026-10-10T19:11:04+01:00","taxable":true,"barcode":"842422179298","grams":25401,"image_id":null,"weight":25.401,"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":55646895538518,"product_id":11350208250198,"title":"1-7\/8\" \/ X Pipe","price":"3859.46","sku":"1132H430","position":3,"compare_at_price":"","fulfillment_service":"manual","inventory_management":null,"option1":"1-7\/8\"","option2":"X 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