{"product_id":"kooks-05-08-chevrolet-corvette-base-1-7-8-x-3-header-catted-x-pipe-kit","title":"Kooks 05-08 Chevrolet Corvette Base 1-7\/8 x 3 Header \u0026 Catted X-Pipe Kit","description":"\u003ch4\u003e\u003cstrong\u003eKooks 1-7\/8\" x 3\" Long Tube Headers \u0026amp; GREEN Catted X-Pipe for 2005 and 2008 Chevrolet Corvette C6 LS2 6.0L \u0026amp; 2008 LS3 6.2L\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe Kooks 1-7\/8-inch long tube headers and GREEN catted X-pipe kit transforms the 2005 and 2008 Corvette C6 base models with LS2 6.0L or early LS3 6.2L V8, replacing factory manifolds to deliver dyno-proven gains of 45 and 60 rear-wheel horsepower and 40 and 55 lb-ft of torque through equal-length primaries, merged collectors, and a high-flow 3-inch GREEN catted X-pipe that bolts directly to the OEM exhaust for seamless integration and unrestricted flow across the entire RPM range.\u003c\/p\u003e\n\u003cp\u003eHandcrafted from T304 aircraft-quality stainless steel with 3\/8-inch laser-cut flanges, full TIG welds, and 400-cell metallic substrate GREEN cats, this system supports over 750 HP while remaining 49-state emissions legal and preserving the factory dual-mode exhaust function on NPP-equipped cars. The precision design maintains ground clearance and heat shielding for daily-driven C6s without sacrificing the deep, aggressive V8 soundtrack that defines the early C6 era.\u003c\/p\u003e\n\u003cp\u003eFor 2005 and 2008 C6 base Corvette owners who demand track-proven performance with street-legal reliability, the 2160H421 kit is the championship-proven, complete bolt-on solution trusted by LS enthusiasts worldwide.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e1-7\/8-inch equal-length primaries for strong mid-range and top-end power\u003c\/li\u003e\n\u003cli\u003e3-inch GREEN high-flow metallic catalytic converters\u003c\/li\u003e\n\u003cli\u003eFull T304 stainless steel with TIG welds and 3\/8-inch flanges\u003c\/li\u003e\n\u003cli\u003eMerged collectors for optimal scavenging\u003c\/li\u003e\n\u003cli\u003eDirect bolt-on to OEM exhaust retains NPP function where applicable\u003c\/li\u003e\n\u003cli\u003eDyno gains of 45 and 60 RWHP and 40 and 55 RWTQ\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e49-state EPA compliant not for sale or use in California or CARB states without exemption\u003c\/li\u003e\n\u003cli\u003eFits 2005 and 2007 C6 with LS2 6.0L and 2008 C6 with LS3 6.2L\u003c\/li\u003e\n\u003cli\u003eIncludes O2 extensions and all necessary hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCalifornia Proposition 65:\u003c\/strong\u003e Contains chemicals known to the State of California to cause cancer or reproductive harm.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e Limited lifetime on stainless construction and 25,000 miles on catalytic converters to original purchaser.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation required lift and exhaust experience needed\u003c\/li\u003e\n\u003cli\u003eRemove factory manifolds and bolt headers to cylinder heads\u003c\/li\u003e\n\u003cli\u003eConnect catted X-pipe to collectors and OEM mid-pipe\u003c\/li\u003e\n\u003cli\u003eTorque flanges to 25-30 ft-lbs and run drive cycle for ECU\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel\/Engine\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2005 and 2007\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eCorvette\u003c\/td\u003e\n\u003ctd\u003eBase. LS2 6.0L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eCorvette\u003c\/td\u003e\n\u003ctd\u003eBase. LS3 6.2L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eNote: Fits all C6 base coupe and convertible with factory exhaust. Manual or automatic.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch4\u003eWhat's Included in the Purchase\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e(2) 1-7\/8\" x 3\" Long-Tube T304 Stainless Headers with Merged Collectors\u003c\/li\u003e\n\u003cli\u003e(1) 3\" x 3\" GREEN Catted Stainless X-Pipe\u003c\/li\u003e\n\u003cli\u003eGaskets, Stage 8 Locking Bolts, Clamps and Hardware\u003c\/li\u003e\n\u003cli\u003eO2 Sensor Extensions\u003c\/li\u003e\n\u003cli\u003eDetailed Installation Instructions\u003c\/li\u003e\n\u003cli\u003ePart Number: Kooks 2160H421\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eWhy Choose Kooks?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eOver 60 years of championship-winning exhaust engineering\u003c\/li\u003e\n\u003cli\u003eHandcrafted in the USA from T304 aircraft-quality stainless steel\u003c\/li\u003e\n\u003cli\u003eLimited lifetime warranty and dyno-proven performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Does this fit my 2006 C6 manual?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, direct bolt-on for all 2005 and 2008 C6 base models manual or auto\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Will it keep NPP valves working?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes on 2008 NPP cars, full dual-mode function retained\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: How loud is it?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Aggressive V8 rumble at WOT, refined and quiet at cruise\u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eDo Kooks headers require a tune after installation?\u003c\/strong\u003e\u003cbr\u003e\n    Yes. A professional tune is strongly recommended after installing long tube headers. The significant improvement in exhaust flow changes air fuel ratios and requires ECM recalibration to achieve optimal power output and safe operation.\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eWill these headers void my factory powertrain warranty?\u003c\/strong\u003e\u003cbr\u003e\n    Under the Magnuson-Moss Warranty Act, a manufacturer cannot void your vehicle warranty simply because you installed an aftermarket part unless they prove the component directly caused the failure. Consult your dealer for specifics on your situation.\n  \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Do these Kooks headers require a tune after installation? \u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes. A professional tune is strongly recommended after installing long tube headers. The significant improvement in exhaust flow changes air fuel ratios and requires ECM recalibration to achieve optimal power output and safe operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Will Kooks headers void my factory powertrain warranty? \u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Under the Magnuson-Moss Warranty Act, a manufacturer cannot void your vehicle warranty simply because you installed an aftermarket part unless they prove the component directly caused the failure in question. Consult your dealer for specifics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What warranty does Kooks provide? \u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Kooks products are backed by a limited lifetime warranty to the original purchaser against defects in materials and workmanship. Racing and competition use applications may have specific warranty exclusions. Contact Kooks Performance directly for warranty details.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS or Fed Ex Ground.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e Typically ships same day or next if in stock.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Heavy-duty box with foam protection.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Kooks Headers","offers":[{"title":"Default Title","offer_id":42268099805263,"sku":"KSH2160H421","price":3157.71,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/kooks-2160h421-headers_01.jpg?v=1764099133","url":"https:\/\/www.blackopsautoworks.com\/products\/kooks-05-08-chevrolet-corvette-base-1-7-8-x-3-header-catted-x-pipe-kit","provider":"Black Ops Auto Works","version":"1.0","type":"link"}