{"product_id":"c8-corvette-grand-sport-borla-atak-140839cf-with-npp-exhaust-carbon-fiber-tips","title":"C8 Corvette Grand Sport Borla ATAK 140839CF with NPP Exhaust - Carbon Fiber Tips","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\u003e2027 C8 Corvette Grand Sport Borla ATAK 140839CF Cat-Back Exhaust\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eBorla ATAK 140839CF\u003c\/strong\u003e puts Borla's aggressive sound level behind the \u003cstrong\u003e6.7L LS6 V8\u003c\/strong\u003e in the 2027 C8 Corvette Grand Sport and finishes the factory outboard exhaust layout with four 4-inch carbon-fiber tips with bright centers. This cat-back is built for Grand Sports equipped with factory NPP and replaces the exhaust behind the catalytic converters with T-304 stainless steel, 3-inch main piping, SwitchFire® technology and Borla's Polyphonic Harmonizer.\u003c\/p\u003e\n\u003cp\u003eThe CF version gives you the ATAK system with carbon-fiber tips rather than the bright stainless tips or the black chrome tips. If you want the same carbon-fiber appearance with a less aggressive Borla sound level, 140838CF is the S-Type alternative. That makes the choice straightforward: ATAK determines the sound character, while the CF suffix determines the tip finish.\u003c\/p\u003e\n\u003ch3\u003eBorla 140839CF 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 140839CF\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e 6.7L LS6 V8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTips:\u003c\/strong\u003e Quad 4-inch round carbon-fiber tips with bright centers\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\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValves:\u003c\/strong\u003e AFM\/DFM exhaust valves and NPP valves included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTechnology:\u003c\/strong\u003e SwitchFire® and Polyphonic Harmonizer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat Management:\u003c\/strong\u003e Heat shielding included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping:\u003c\/strong\u003e Ships in 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\u003eATAK gives the naturally aspirated LS6 a more aggressive exhaust character than Borla's S-Type system.\u003c\/li\u003e\n\u003cli\u003eQuad 4-inch carbon-fiber tips with bright centers give the outboard exhaust a distinct finish from the bright stainless and black chrome ATAK versions.\u003c\/li\u003e\n\u003cli\u003eSwitchFire® changes how the exhaust pulses merge, while the Polyphonic Harmonizer adds multiple tuned frequencies to the exhaust note.\u003c\/li\u003e\n\u003cli\u003eThe system retains factory NPP operation once the valve actuators are properly installed and recalibrated.\u003c\/li\u003e\n\u003cli\u003eT-304 stainless steel construction and included heat shielding are designed for the tightly packaged C8 exhaust area.\u003c\/li\u003e\n\u003cli\u003eThe complete cat-back replaces the exhaust from the catalytic-converter outlets rearward.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat to Expect After Installation\u003c\/h3\u003e\n\u003cp\u003eATAK is the more aggressive choice in Borla's Grand Sport lineup, with more exhaust presence under acceleration than the S-Type version while retaining the active NPP system. Borla does not publish a decibel figure for 140839CF, so we do not assign one. If your priority is maximum Borla character from the LS6 while still keeping the factory valved exhaust operation, this is the carbon-fiber-tip version built for that job.\u003c\/p\u003e\n\u003cp\u003eThe four carbon-fiber tips also change the rear appearance without changing the exhaust layout itself. The dark outer tips contrast with the bright centers at each outlet, while the system remains in the Grand Sport's factory-style outboard position. After installation, the valve actuators must be recalibrated before the active exhaust setup is considered complete.\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\u003eFactory NPP is required.\u003c\/strong\u003e Borla 140839CF is built for the 2027 Grand Sport with the factory valved performance exhaust and outboard rear exhaust outlets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe WUB quad center-exit exhaust is a different configuration.\u003c\/strong\u003e Borla 140839CF uses the outboard dual-split rear exit and is not the system for the WUB center-exit layout. WUB is included with the Z52 Track Performance Package, so confirm the factory exhaust configuration before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve actuator recalibration is required after installation.\u003c\/strong\u003e The exhaust valve actuators must be recalibrated according to GM Document ID 5406413, and Chevrolet dealer service is recommended for the procedure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Availability:\u003c\/strong\u003e Custom Made - Ships in 21–28 Business Days. Check the current availability shown on the page before scheduling installation.\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 Corvette\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel Year:\u003c\/strong\u003e 2027\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Grand Sport\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e 6.7L LS6 V8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransmission:\u003c\/strong\u003e 8-speed dual-clutch\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 Factory NPP valved performance exhaust with outboard exhaust outlets\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Buy This Borla ATAK 140839CF From Custom Corvette Accessories?\u003c\/h3\u003e\n\u003cp\u003eCustom Corvette Accessories specializes in Corvette parts, and the 2027 Grand Sport has two rear exhaust layouts that should not be treated as the same application. Borla 140839CF is identified here specifically for the LS6 Grand Sport with factory NPP and the outboard exhaust outlets, while the WUB quad center-exit configuration is separated before you order. You get the exact ATAK carbon-fiber-tip system matched to the correct Grand Sport exhaust layout, with Free Shipping in the Continental USA.\u003c\/p\u003e","brand":"Borla","offers":[{"title":"Default Title","offer_id":50649222742253,"sku":"140839CF","price":4997.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1359\/4413\/files\/c8-corvette-grand-sport-borla-140839cf-atak-cat-back-carbon-fiber.jpg?v=1788901498","url":"https:\/\/www.corvettepartsandaccessories.com\/products\/c8-corvette-grand-sport-borla-atak-140839cf-with-npp-exhaust-carbon-fiber-tips","provider":"Corvette Parts from Custom Corvette Accessories","version":"1.0","type":"link"}