C8 Corvette Grand Sport Borla S-Type 140838CF with NPP Exhaust - Carbon Fiber Tips

Borla 140838CF Cat-Back Exhaust for the 2027 C8 Corvette Grand Sport, Quad Carbon Fiber Tips The Borla S-Type 140838CF gives the 2027 C8 Corvette Grand Sport and Grand Sport X a deeper exhaust note and finishes the factory outboard exhaust layout with four 4-inch tips of carbon fiber with bright centers, two per side. Built for the 6.7L LS6 V8 and the factory NPP exhaust, it is a T-304 stainless cat-back with 3-inch main piping, SwitchFire and the Polyphonic Harmonizer, and the active exhaust valves stay in the system. The finish is what sets this version apart, and what sits behind it is the same system in every finish. The 140838CF 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 S-Type, a powerful and balanced deep tone, shaped by SwitchFire and the Polyphonic Harmonizer. AFM/DFM valves and NPP valves included in the kit, so the car retains its NPP operation once the valve actuators are installed and recalibrated. Heat shielding is in the box and the system ships in two, so the whole job is one order. Two boxes, the same T-304 stainless system in every finish, and the tips already on it, so there is no separate tip kit to order and nothing to wait on before the car is finished. Borla 140838CF Product Details Brand: Borla Part number: 140838CF System type: Cat-Back Sound level: S-Type Fits: C8 Corvette Grand Sport, 6.7L LS6 Tips: Quad, two per side, 4-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 Warranty: Borla Million Mile Warranty Benefits Quad 4-inch carbon fiber tips with bright centers give the outboard exhaust a darker, more technical look, with the bright centers keeping contrast at each outlet S-Type is the balanced sound level, a deeper and fuller note than stock on a car meant to be driven regularly SwitchFire changes how the exhaust pulses merge, and the Polyphonic Harmonizer adds tuned frequencies to the note The valves are in the box, so the Grand Sport keeps its NPP quiet and loud behavior once recalibrated T-304 stainless construction with the heat shielding included, for the tightly packaged C8 exhaust area One complete system from the converter outlets rearward, in two boxes What to Expect After Installation Expect a deeper, fuller exhaust note than the factory system, with NPP operation retained. There is no published decibel figure for this system and we do not estimate one. Visually, the four carbon fiber tips give the outboard exhaust a darker finish than a plated tip, and the bright centers add contrast at each outlet. On the Grand Sport's wide rear fascia that is four tips doing it, two per side, and it is the first thing anyone behind you sees. The installation is not finished when the hardware is bolted in place: the exhaust valve actuators must be recalibrated afterward so the active exhaust operates correctly, and that step is covered below. Important Exhaust Notes Factory NPP is required. This system is built for the Grand Sport with the factory valved performance exhaust and outboard rear outlets. Do not install it on a car without O.E. NPP. The WUB quad center-exit exhaust is a different configuration. 140838CF is not listed for the WUB center-exit layout. WUB is standard with the Z52 Track Performance Package, 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 Transmission: 8-speed dual-clutch Drive: Rear-wheel drive Body Styles: Coupe and convertible Required Equipment: The factory NPP valved performance exhaust with outboard exhaust outlets Why Buy This Borla S-Type 140838CF From Custom Corvette Accessories? Custom Corvette Accessories is enthusiast owned and operated, so we confirm the fitment before the order goes out. On a 2027 Grand Sport the question that matters is whether the car was built with the outboard NPP exhaust this system is listed for or the WUB quad center-exit option, and those are two different cars. Send us the window sticker or the RPO list from the glovebox before you order and we will confirm which one you have. Borla 140838CF 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.