We told this kid our car wasn't loud and to stand behind it when we started it up and revved it. We might have lied just a ...

The NPP exhaust system of the performance pack adds 5 extra ponies and pound-feet. As opposed to the cross-plane V8 of the Stingray, the LT6 in the Z06 is a flat-plane V8 with a DOHC valvetrain.