Re: Exhaust too loud
my best guess would be to try and get a resonator or another muffler installed in the system. if you go back to stock you may loose some power. i know on the focus most exhaust systems net 10fwhp. a resonator matched to the same diameter of piping that was used in the aftermarket exhaust probably will not give you a loss in power.
Autox is for fast drivers not fast cars.
2007 Zx3 D20 5spd............stock