I posted about a week or so ago about my flowmaster exhaust system. It's not stainless steel (which is nicer and will last longer), but it sounds very good... it's loud as heck, but not annoyingly 'glass pack/cherry bomb' loud. It has that nice v8 rumble that we all know and love! When you open the throttle it screams.
http://www.elcovaforums.com/forums/s...ght=flowmaster