I have a video posted on YouTube in the rally forum from April 2010. I have 2.5" exhaust to the gas tank, then a 3" with Dynomax muffler at the end. Keep in mind that my car is totally stripped, has a billet dogbone mount (no cushion) with ES solid engine mounts elsewhere and pretty solid muffler mounts too. If you kept the car below 3500, it sounded nice, but wailed nicely at WOT. I'll be replacing that if the car runs again as the whole system was extremely heavy for rally duty.
Also, I made the same torque as you with C2, but about 20 less whp and have a completely different powerband. Pretty different builds though internally.
Last edited by rallyser
on 2012-12-24
at 23-44-08.