'06 Z06 bimodal mufflers

[sinned]

I once knew a guy (dead now) that had a pair on his C4 vette, they worked very well. At idle it sounded stock and anything more than about 50% throttle opened them right up. He was a true best of the best kind of guy, dyno tested and drag strip tested everything, even kept his laptop in the car for evaluations of runs. They were about the only thing on the car that remained for any length of time.