Anybody have a TurboXS Stealthback Installed?
I just installed a TurboXS Stealthback using the factory muffler. The car is flashed to stage 2 via Cobb AP and K&N drop in filter minus the resonator. The car is very quiet however sounds like it has an exhaust leak. Really becomes apparent between 2K to 3K which I think is just the boxer sound being more apparent. If it were an exhaust leak it would be heard at all RPM's. Anybody else have this same setup? hear the same thing?