I personally vote magnaflow. I dont have any clips other than at the track from years ago but I think you may be able to hear it over the Nova I was racing. Not really loud at normal cruising and not as loud as a dynomax at wot. With 3" exhaust and no resonator/cat, it is definitely louder than in could be but still cleaner sounding than what is in the poll.

http://www.youtube.com/watch?v=L7DXWZ-8Bm0