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Instead of cutouts I found some NPP mufflers on ebay. The valves are spring loaded full open so I made up some spacers to hold them at about 50%. Very happy w/ the sound and I can vary it w/ different sized spacers.
Thx for that info. I know very little about C7s, co I just googled NPP exhaust and this link was one of the search results: https://www.corvetteforum.com/forums...ers-sound.html. The video in that thread shows that the mufflers are controlled by a cockpit touch screen. Is that a standard feature on all C7s?
Easy to tell if you have it... the NPP exhaust is larger with flared tips.
The settings and drive mode **** will change the sound, or some people just remove the fuse that controls the flap so they are wide open all the time. Another option for control is Mild 2 Wild.
