it gives a nice rumble, particularly at start up and lower revs, but totally mellow while cruising, maybe 10% louder than stock while cruising. When you get on it, you'll definitely hear a deeper tone and rumble.
This is the orginal single can, quad tip exhaust.
I've gotten many compliments on it and you can hear it when they're pulling the car up after a car wash.
I'm now ready for something a little louder. It's priced pretty good. Local only since it's pretty big.
Here are some pics.