I was looking at an 06 gto, 08 g8 or a 01 z06 and bought the zo6 and dont regret it at all. Its a bred race car and will take modding to both the gto and g8 to be up to par with the z06. I got the z for cheaper too! Gto= more than i wanted to spend on it+ its a pig. The g8s= all automatic+ 4door.
Nice numbers though!
The APS kit on a C5 makes 607rwhp on stock mufflers and 8psi