Swap of exhaust is a personal selection. Do a bit of Googling around and you'll probably round up a fair number of sound bites for the various exhausts available for your ride. I did that on my first bike but haven't since then because I have other uses for the $.
Dragging knee is for the track, and dragging tail is for the lot. --Kane Friesen
When you're in a car, you're watching a movie; when you're on a bike, you're in the movie. --Robert Pirsig
Identity theft is not Fun