{"product_id":"kooks-3-green-cat-ss-x-pipe-2014-2019-chevrolet-corvette","title":"Kooks 3\" GREEN Cat SS X-Pipe 2014-2019 Chevrolet Corvette","description":"\u003ch4\u003e\u003cstrong\u003eTrue Dual Flow with X-Pipe Scavenging for Broad Torque and Peak Power\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe Kooks 3-inch GREEN catted X-pipe completes the exhaust upgrade on 2014 and 2019 Corvette C7 Stingray, Grand Sport, and Z06 models with the LT1 6.2L V8, linking Kooks long tube headers directly to the factory NPP dual-mode mid-pipe for seamless integration that maintains 49-state emissions compliance while adding 20 and 30 rear-wheel horsepower and 25 and 35 lb-ft of torque through high-flow 300-cell metallic substrate GREEN catalytic converters and balanced crossover design.\u003c\/p\u003e\n\u003cp\u003eHandcrafted from T304 aircraft-quality stainless steel with 3\/8-inch laser-cut flanges and full TIG welds, this X-pipe ensures zero leaks under extreme heat and supports over 850 HP while preserving the C7's exotic V8 soundtrack with zero drone. The precision design maintains factory ground clearance and NPP valve operation for quiet cruising or track-ready roar.\u003c\/p\u003e\n\u003cp\u003eFor C7 LT1 owners pairing Kooks headers with stock exhaust, the 21703300 GREEN catted X-pipe is the essential emissions-legal link that maximizes performance with factory refinement.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e3-inch mandrel-bent T304 stainless steel X-pipe\u003c\/li\u003e\n\u003cli\u003eGREEN 300-cell high-flow metallic catalytic converters\u003c\/li\u003e\n\u003cli\u003eDirect bolt-on to Kooks headers and OEM NPP mid-pipe\u003c\/li\u003e\n\u003cli\u003e3\/8-inch laser-cut flanges with full TIG welds\u003c\/li\u003e\n\u003cli\u003eSupports 850+ HP with proper tuning\u003c\/li\u003e\n\u003cli\u003ePreserves NPP dual-mode valve function\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\u003eRequires Kooks long tube headers for proper fitment\u003c\/li\u003e\n\u003cli\u003eFits 2014 and 2019 C7 with LT1 6.2L dry-sump\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 recommended lift required\u003c\/li\u003e\n\u003cli\u003eBolt X-pipe to Kooks header collectors with supplied gaskets\u003c\/li\u003e\n\u003cli\u003eConnect to OEM NPP mid-pipe using included hardware\u003c\/li\u003e\n\u003cli\u003eTorque flanges to 25-30 ft-lbs and check for leaks after heat cycle\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\u003e2014 and 2019\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eCorvette\u003c\/td\u003e\n\u003ctd\u003eStingray \/ Grand Sport \/ Z06. LT1 6.2L Dry Sump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eNote: Fits all C7 with Kooks long tube headers and factory NPP exhaust. Coupe or convertible.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch4\u003eWhat's Included in the Purchase\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e(1) 3\" GREEN Catted X-Pipe\u003c\/li\u003e\n\u003cli\u003eGaskets and Flange Hardware Kit\u003c\/li\u003e\n\u003cli\u003eDetailed Installation Instructions\u003c\/li\u003e\n\u003cli\u003ePart Number: Kooks 21703300\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 keep NPP valves working?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, full dual-mode NPP function is retained\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Will it work with factory headers?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No, requires Kooks long tube headers\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 roar in track mode, refined and quiet in tour mode\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 wooden crate with foam protection.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Kooks Headers","offers":[{"title":"Default Title","offer_id":41007241429071,"sku":"KSH21703300","price":2377.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/products\/kooks-21703300-xpipe_01.jpg?v=1764347601","url":"https:\/\/www.blackopsautoworks.com\/products\/kooks-3-green-cat-ss-x-pipe-2014-2019-chevrolet-corvette","provider":"Black Ops Auto Works","version":"1.0","type":"link"}