{"product_id":"c8-corvette-grand-sport-borla-atak-140839-with-npp-exhaust","title":"C8 Corvette Grand Sport Borla ATAK 140839 with NPP Exhaust","description":"\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1359\/4413\/files\/cca-free-shipping-performance-banner-v1_png.png?v=1784299920\" alt=\"Free shipping on Borla Corvette exhaust systems\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003ch2\u003eBorla 140839 ATAK Cat-Back Exhaust for the 2027 C8 Corvette Grand Sport, the Aggressive End of the Borla Range\u003c\/h2\u003e\n\u003cp\u003eATAK is the aggressive end of the Borla range, and a naturally aspirated 6.7-liter V8 is the kind of engine people put it on. The \u003cstrong\u003eBorla ATAK 140839\u003c\/strong\u003e is a cat-back exhaust for the \u003cstrong\u003e2027 C8 Corvette Grand Sport\u003c\/strong\u003e and its \u003cstrong\u003e6.7L LS6 V8\u003c\/strong\u003e, running 3-inch main piping in T-304 stainless steel out to a dual split rear exit. So how far up does ATAK actually take it?\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003e140839 replaces the exhaust from the catalytic converters back\u003c\/strong\u003e, which is more of the car than an axle-back touches, and it moves the gas out through 3-inch piping in place of the factory routing. \u003cstrong\u003eATAK is Borla's aggressive sound level\u003c\/strong\u003e, built for the owner who wants the LS6 heard from outside the car and not only through the cabin. The quiet setting does not go away, because \u003cstrong\u003ethe AFM\/DFM and NPP valves ship with the system\u003c\/strong\u003e, so the car still has it for early mornings and long highway miles.\u003c\/p\u003e\n\u003ch3\u003eBorla 140839 Product Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Borla\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e 140839\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem type:\u003c\/strong\u003e Cat-Back\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSound level:\u003c\/strong\u003e ATAK, the aggressive end of the Borla range\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e C8 Corvette Grand Sport, 6.7L LS6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMain piping:\u003c\/strong\u003e 3-inch, with 2-inch and 2.75-inch sections\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e T-304 stainless steel construction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTips:\u003c\/strong\u003e Quad, two each side, 4-inch round bright chrome\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExit style:\u003c\/strong\u003e Dual split rear exit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValves:\u003c\/strong\u003e AFM\/DFM valves and NPP valves included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping:\u003c\/strong\u003e Two boxes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Borla Million Mile Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBenefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eA hard-edged exhaust note on a naturally aspirated 6.7-liter V8\u003c\/li\u003e\n\u003cli\u003eCat-back coverage: everything from the catalytic converters back, not only the section behind the axle\u003c\/li\u003e\n\u003cli\u003eFactory valve behavior kept intact, so aggressive does not mean loud all the time\u003c\/li\u003e\n\u003cli\u003eQuad 4-inch bright chrome tips across the wide-body rear\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat to Expect After Installation\u003c\/h3\u003e\n\u003cp\u003eExpect a harder-edged, more aggressive tone than stock at throttle, with the valves still doing their job when you close it. There is no published decibel figure for this system and we do not estimate one. Sound is the reason this system exists and it is also the one thing you cannot audition before you buy, so call us if you want to talk it through before you order. If a warning light shows up after the install, that is the valve relearn talking, and it is covered below.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003eImportant Exhaust Notes\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThis fits the Grand Sport built with the factory NPP valved performance exhaust.\u003c\/strong\u003e Do not install it on a car without O.E. NPP.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve actuator recalibration is required after installation\u003c\/strong\u003e, per GM Document ID 5406413, and a Chevrolet dealer is the recommended place to have it done. Budget the time before you book the install.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan style=\"color: #ff2a00;\"\u003eCORVETTE COMPATIBILITY\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeneration:\u003c\/strong\u003e C8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e 2027 Chevrolet Corvette Grand Sport\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel Years:\u003c\/strong\u003e 2027\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e 6.7L LS6 V8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Styles:\u003c\/strong\u003e Coupe and convertible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRequired Equipment:\u003c\/strong\u003e The factory NPP valved performance exhaust with outboard exhaust outlets\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Buy This Borla ATAK 140839 From Custom Corvette Accessories?\u003c\/h3\u003e\n\u003cp\u003eCustom Corvette Accessories is enthusiast owned and operated, so we confirm the fitment before the order goes out. Tell us your model year and trim, or send the VIN, and we will check which factory exhaust your Grand Sport was built with, the outboard NPP outlets or the quad center-exit option, because that is what decides whether this system bolts to your car. Borla 140839 is the ATAK cat-back in T-304 stainless with quad 4-inch bright chrome tips and the AFM\/DFM and NPP valves included, built for the 2027 C8 Corvette Grand Sport, and Free Shipping in the USA.\u003c\/p\u003e","brand":"Borla","offers":[{"title":"Default Title","offer_id":50648102076653,"sku":"140839","price":4498.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1359\/4413\/files\/c8-corvette-grand-sport-borla-140839-atak-cat-back-npp.jpg?v=1788897456","url":"https:\/\/www.corvettepartsandaccessories.com\/products\/c8-corvette-grand-sport-borla-atak-140839-with-npp-exhaust","provider":"Corvette Parts from Custom Corvette Accessories","version":"1.0","type":"link"}