Thanks, I love my exhaust. It's really deep and sounds amazing with headers. Mine does have a leak on the headers(plan on fixing) and can get annoying, but other than that I love it. Nice low rumble, and little rasp.(would be even less if I had a res and/or a cat)
His exhaust, i'm not sure. I have class again tomorrow and hopefully he'll find me or I'll find him. It sounded to me like flowmaster 40's, which on the right setup sound sexy also.