I have one on my GS-R. It sounds great. I don't see why anyone would have a problem with the actual tone of the exhaust, but yes it is quite loud. If you want something quiet then don't buy the skunk2.

Although it's loud like I said, they must have tuned it to cancel out the resonation when a certain amount of throttle is engaged. I find that once I'm up to speed on the streets or freeway I can apply just a small amount of pressure to the pedal to keep the car going and the exhaust becomes all but silent.