We designed this system to have a split personality. It's loud and aggressive when you want it; civilized and restrained when you need it. It really brings out the lopey American V8 sound, however the X-Pipe design gives it a hint of exotic mid-engined tone. Check out our videos below to hear for yourself!

POWER:

The factory NPP (Valved) exhaust on the C8 Corvette flows pretty well with the valves open. However, with the valves closed it chokes the exhaust flow. Comparing the NPP exhaust with valves open to our Valvetronic Maxflo Exhaust with valves open, we saw peak gains of 4 whp and 6 ft/lbs of TQ. Comparing the two in valves closed mode, measured at the wheels we saw peak gains of 11.5 hp and 10ft/lbs of TQ, and curve gains as much as 14 hp and 15 ft/lbs of TQ. So whether you're in the comfortable valves closed mode or ripping around valves open, our Valvetronic Maxflo Exhaust System flows well and makes great power. We expect to see even more gains when compared to a C8 equipped with the base (non-valved) exhaust.

FEATURES:

• Fits all Chevrolet Corvette C8 vehicles (2020+) with the NPP exhaust (factory valved exhaust)
• Peak power gains of 4 whp and 6 ft/lbs of TQ and curve gains as much as 14 hp and 15 ft/lbs of TQ on our DynoJet
• 3D laser scanned, digitized and CAD designed for maximum flow and performance
• 3.0” 76mm T304L/ 321 stainless steel tubing and flexible bellows made 100% in house at Fabspeed Motorsport USA
• Includes heat shielding made from amorphous silica fiber wrapped with 321 Stainless Steel
• This cat-back system is 100% emissions legal worldwide
• Plug and Play exhaust valves just like GM originally designed
• CNC mandrel bent tubing and hand TIG welded and argon back-purged welds
• Includes AFM valve simulator mounts - Fabspeed recommends placing the car in 8-cylinder mode to eliminate any possibility of a Check Engine Light
• The heavy OEM NPP system weighs 76 lbs / 34.5 KGs and this Fabspeed system weighs 20 lbs /9 KGs less
• Your choice of Deluxe QUAD matte Carbon fiber tips, polished stainless steel tips, brushed tips and ceramic coated tips
• Larger diameter tubing allows the C8 engine to really breathe and have gutsy throaty muscle car sound across the RPM band
• Worried about heat? Check out the heat analysis we did on the Fabspeed Blog
• Fabspeed Motorsport USA over 25+ years of worldwide experience with Porsche, Ferrari, Lamborghini, McLaren, Aston Martin, and other exotic cars
• Simple DIY bolt-on installation, no cutting or welding required
• All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty

NOTES:

• On 2021+ models, you MUST keep the NPP valve bodies plugged in the entire time during installation, if you disconnect them it will cause a CEL that will require reinstallation of the factory exhaust system to clear. If you have any questions, do not hesitate to contact Defined Performance customer support directly at J[email protected] or 417-838-7927
• On most 2020 models, to avoid having a check engine light, you will need to take your C8 to a GM dealership after the exhaust installation to get an AFM and NPP valve relearn procedure