Cat/Downpipe are the only restrictions, the stock muffler is a flow through so if you put bigger pipe on you wont notice any difference its just the "cool" and "sound" factors, which, with me it was worth it /ubbthreads/images/graemlins/cool.gif
Tymar Performance is where I got mine, give him an email, his name is Dale Isley, pretty highly reguarded around here, small dealer but pretty competitive prices and great guy to deal with.
Tymar Performance is where I got mine, give him an email, his name is Dale Isley, pretty highly reguarded around here, small dealer but pretty competitive prices and great guy to deal with.