I have a friend that has a C8 but I don't like the stock exhaust sound. It sounds too Euro but the car does have some good features.I built a 2000 Camaro. Did 550ish. I also helped on a 99 vette. It had 180 degree headers. That makes the best music. My GN is a real deal mid 11 second car. I’m going to do the E85 stuff at some point.