C8 Corvette Grand Sport Borla ATAK 140839CF with NPP Exhaust - Carbon Fiber Tips

Borla 140839CF Cat-Back Exhaust for the 2027 C8 Corvette Grand Sport, Quad Carbon Fiber Tips The Borla ATAK 140839CF is the cat-back exhaust for the 2027 C8 Corvette Grand Sport and Grand Sport X with quad 4-inch tips in carbon fiber with bright centers, two per side, at the ATAK sound level, for a car built with the factory NPP exhaust. It is a T-304 stainless system with 3-inch main piping, SwitchFire and the Polyphonic Harmonizer, built for the 6.7L LS6 V8, and the active exhaust valves stay in the system. Confirm the factory exhaust first, then decide whether the aggressive sound level is the one you want to live with every day. The 140839CF replaces the exhaust from the catalytic converter outlets rearward in one complete system, with 3-inch main piping and 2-inch and 2.75-inch sections through the middle of the car. The sound level is ATAK, the aggressive setting, shaped by SwitchFire and the Polyphonic Harmonizer. AFM/DFM valves and NPP valves included, so the car keeps its NPP operation once the valve actuators are installed and recalibrated. Heat shielding is in the box, the tips are already on the system, and it ships in two boxes as one order. Borla 140839CF Product Details Brand: Borla Part number: 140839CF System type: Cat-Back Sound level: ATAK, Borla's aggressive setting Fits: C8 Corvette Grand Sport, 6.7L LS6 Tips: Quad, two per side, four inch round, carbon fiber with bright centers Exit style: Dual split rear exit Main piping: 3-inch, with 2-inch and 2.75-inch sections Material: T-304 stainless steel construction Valves: AFM/DFM valves and NPP valves included Technology: SwitchFire and Polyphonic Harmonizer Heat management: Heat shielding included Shipping: Two boxes Availability: Custom Made, built to order at the manufacturer Warranty: Borla Million Mile Warranty Benefits Quad 4-inch carbon fiber tips with bright centers at the outboard outlets, two per side, in place of the factory tips An aggressive exhaust note on a naturally aspirated 6.7-liter V8 One complete system from the converter outlets rearward, in two boxes 3-inch main piping with 2-inch and 2.75-inch sections through the middle of the car The valves are in the box, so the Grand Sport keeps its NPP quiet and loud behavior once recalibrated Carbon fiber tips with bright centers, already fitted to the system, so there is no separate tip kit to order What to Expect After Installation Expect an aggressive exhaust note at throttle, deeper and fuller than stock, with NPP operation retained when the valves close. There is no published decibel figure for this system and we do not estimate one, so call us before you order if you want to talk the sound level through. The four carbon fiber tips sit at the outboard outlets in place of the factory tips, with the bright centers showing at each opening. The installation is finished when the exhaust valve actuators are recalibrated, not when the last clamp is tight, and that step is covered below. Important Exhaust Notes This one is a Custom Made item, built to order at the manufacturer. The current build time is in the availability line on this page. Read it before you book the shop. This fits the Grand Sport built with the factory NPP valved performance exhaust. Do not install it on a car without O.E. NPP. The quad center-exit exhaust is a different car. That layout is the optional RPO WUB and it is standard with the Z52 Track Performance Package. 140839CF is not listed for the WUB center-exit layout, so check the window sticker before you order. Valve actuator recalibration is required after installation, per GM Document ID 5406413, and a Chevrolet dealer is the recommended place to have it done. Plan for it as part of the install. CORVETTE COMPATIBILITY Generation: C8 Model: 2027 Chevrolet Corvette Grand Sport and Grand Sport X Model Years: 2027 Engine: 6.7L LS6 V8 Body Styles: Coupe and convertible Required Equipment: The factory NPP valved performance exhaust with outboard exhaust outlets Why Buy This Borla ATAK 140839CF From Custom Corvette Accessories? Custom Corvette Accessories is enthusiast owned and operated, so we confirm the fitment before the order goes out. A 2027 Grand Sport was built with either the outboard NPP exhaust this system is listed for or the WUB quad center-exit option, and each takes a different system. Check the window sticker or the RPO list in the glovebox, and send it to us if you want it confirmed before you order. Borla 140839CF is a Custom Made item, so we check the current build time with you before you commit. It ships with the AFM/DFM and NPP valves in the box, built for the 2027 C8 Corvette Grand Sport, with Free Shipping in the USA.