I have a Thorley header, magnaflow cat and a dynomax muffler running trough a 2 1/4" tube. It has a great low troaty sound at < 3500-4000 past that and it gets ricy, but what do you expect from a 4bangger. It's not loud, if I roll up the windows I can listen to music fine without a ultra loud muffler. If I want to listen to exhaust, then I roll down the windows.

GOI

P.S. for people in the Denver area looking for a great muffler/exhaust shop call Brighton radiator & muffler. I got from the header flange back (cat, muffler, tube, install) for a total of $261.00. Everywhere else was $350.00 and up