Super Shredder
Member
- :
- 2007 Black MS6GT
i recomend a single exit 3" cat back exhaust fabricated by your local exhaust shop with a magnaflow muffler. adding a high flow cat is also a good idea. beyond that, your next step would be a downpipe. catted to stay legal and CEL free. OR skip the whole high flow cat and go to test pipe. this is illegal, but very easy to switch in and out and no CEL, but if you're caught, its a summons. you dont want to go full turboback until are pretty much changing the turbo, its common that removing any catalytic coverters from these cars will wear the turbo out faster, as well as if you had a slight turbo/seal problem, you will now have a bigger one coming out your shiny new exhaust. my perfect setup would be illegal with a gt35 and no cats, but my realistic car lasting beyond 100k miles setup would be catted downpipe to high flow cat to custom 3" single exit magnaflow muffler.