All standard Axle-Back and Valve-Backs may be used on NPP equipped vettes without causing a CEL. Variable Sound NPP Valve exhausts (Part # 14777 and 14776) can only be used on vettes with NPP.
C7 Corvette Sound Level Guide: Double X-Pipe (Part # 14761) when paired with an Axle-Back or Valve-Back will increase the overall sound level of the Cat-Back system. *Variable Sound Axle-Back's with NPP Valves open are similar to Xtreme, valves closed are similar to Sport
Sport Axle-Back + X-Pipe = an Xtreme Cat-Back
Xtreme Axle-Back + X-Pipe = an Xtreme+ Cat-Back
C7 Carbon Fiber Intake Fitment: Stingray, Z51, and GrandSport use Part # 44001 or 44001D. Z06 use Part # 44002 or 44002D.
Nothing compares to CORSA PERFORMANCE. CORSA offers exceptional 2017 Corvette C7 NPP 6.2L V8 performance exhaust kits. With innovative patented technologies like RSC® (Reflective Sound Cancellation®) Technology, our reputation in the industry is unmatched.
Any of the standard Axle-Backs or Valve-Backs we offer can be used on NPP 2017 Corvette exhaust systems without leading to a check engine light. Reach out to CORSA if you have any questions about our offerings.
Variable Sound NPP Valved exhaust systems, like Part #14776, are engineered specifically for NPP Vettes. Keeping the NPP valves open gives an Xtreme sound, while keeping them closed is more of a Sport sound level. Combining a Sport Axle-Back with a Double X-Pipe (Part #14761) results in an Xtreme Cat-Back sound, while using an Xtreme Axle-Back with the X-Pipe gives an Xtreme+ Cat-Back sound. Make sure you check out the 2017 Corvette C7 NPP 6.2L V8 performance upgrade kits that will produce the sound you desire.