i hope they changed the pistons and the cat. that was the biggest weak point of the sc/ss. i had one. the cat clogged with only 10k miles and then by 13k miles the #1 and #4 pistons broke. the car was stock. piece of **** if you ask me. i wouldnt take one over a srt 4 just because of what i have been through with the last ones and i have a srt 4 now. lol. good luck to GM with this new one.