{"product":{"id":11350216474966,"title":"Kooks Cadillac CTS-V LS6 \/ LS2 Header Kits (2004-2007)","body_html":"\u003ch2\u003eBring a matched Kooks upgrade to your first-generation CTS-V\u003c\/h2\u003e\u003cp\u003eUpgrade your CTS-V with 1-7\/8\" stainless long tube headers and matching front connections. Choose Competition Only or Performance cats, both joining the factory resonator through the 2-1\/2\" OEM interface. Gaskets and installation hardware are included.\u003c\/p\u003e\u003cp\u003eSKUs: 2310H410, 2310H420\u003c\/p\u003e\u003ch2\u003eKeep the factory resonator connection\u003c\/h2\u003e\u003cp\u003eThe headers use 3\" collectors, and the supplied pipes transition to the 2-1\/2\" OEM rear joint at the factory resonator. That gives the first-generation CTS-V its specific connection arrangement while retaining a compatible rear system.\u003c\/p\u003e\u003ch2\u003eChoose for the LS6 or LS2 build\u003c\/h2\u003e\u003cp\u003eThe kit covers the 5.7-litre LS6 in 2004-2005 and the 6.0-litre LS2 in 2006-2007. Performance cats are for naturally aspirated use. Competition Only is the uncatted choice for competition use.\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\u003e2310H410\u003c\/td\u003e\n\u003ctd\u003eCat Type: Competition Only\u003c\/td\u003e\n\u003ctd\u003eHeaders; Competition Only front connections; Gaskets and installation hardware included\u003c\/td\u003e\n\u003ctd\u003eUncatted; competition use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2310H420\u003c\/td\u003e\n\u003ctd\u003eCat Type: Performance Cats\u003c\/td\u003e\n\u003ctd\u003eHeaders; Performance Cats front connections; Gaskets and installation hardware included\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\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\u003e2004-2005\u003c\/td\u003e\n\u003ctd\u003eCadillac CTS V\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e2310H410, 2310H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006-2007\u003c\/td\u003e\n\u003ctd\u003eCadillac CTS V\u003c\/td\u003e\n\u003ctd\u003e6.0L V8\u003c\/td\u003e\n\u003ctd\u003e2310H410, 2310H420\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\u003e2310H410, 2310H420\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2004-2005 CTS-V LS6 5.7L; 2006-2007 CTS-V LS2 6.0L\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\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear connection\u003c\/td\u003e\n\u003ctd\u003e2-1\/2\" OEM joint to factory resonator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChoices\u003c\/td\u003e\n\u003ctd\u003eCompetition Only or Performance cats\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eHeaders, selected connections, gaskets and installation hardware\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\u003eWhere do the pipes join the retained exhaust?\u003c\/h3\u003e\u003cp\u003eThey connect to the factory resonator at the OEM rear interface.\u003c\/p\u003e\u003ch3\u003eAre gaskets included?\u003c\/h3\u003e\u003cp\u003eYes. Gaskets and the required installation hardware are included with both packages.\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\u003eIntended use\u003c\/h2\u003e\u003cp\u003eCompetition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003cp\u003eThe competition-use waiver applies to 2310H410.\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":"2026-10-08T10:41:37+01:00","handle":"kooks-2004-2007-cadillac-cts-v-header-conn-kits","updated_at":"2026-10-10T18:29:25+01:00","published_at":"2026-10-09T13:37:56+01:00","template_suffix":null,"published_scope":"global","tags":"brand:kooks, cat:exhausts, dept:performance-parts, fits:cadillac-cts, make:cadillac, type:header-kit","variants":[{"id":55646907171158,"product_id":11350216474966,"title":"Competition Only","price":"2558.75","sku":"2310H410","position":1,"compare_at_price":"","fulfillment_service":"manual","inventory_management":null,"option1":"Competition Only","option2":null,"option3":null,"created_at":"2026-10-08T10:41:37+01:00","updated_at":"2026-10-10T18:29:25+01:00","taxable":true,"barcode":"842422160692","grams":22680,"image_id":null,"weight":22.68,"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":55646907203926,"product_id":11350216474966,"title":"Performance Cats","price":"2842.74","sku":"2310H420","position":2,"compare_at_price":"","fulfillment_service":"manual","inventory_management":null,"option1":"Performance Cats","option2":null,"option3":null,"created_at":"2026-10-08T10:41:37+01:00","updated_at":"2026-10-10T18:29:25+01:00","taxable":true,"barcode":"842422160715","grams":24948,"image_id":null,"weight":24.948,"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":14512400236886,"product_id":11350216474966,"name":"Cat Type","position":1,"values":["Competition Only","Performance Cats"]}],"images":[{"id":86449293885782,"product_id":11350216474966,"position":1,"created_at":"2026-10-08T10:41:37+01:00","updated_at":"2026-10-08T10:41:40+01:00","alt":"Kooks 2004-2007 Cadillac CTS-V Header\/Conn. 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