Originally Posted by cug
For me the only reason to buy an aftermarket exhaust is if I can find one that is narrower and allows me to pull in the luggage rack / cases. But even there - a few hundred bucks for one inch saved isn't really worth it. Only if you plan to keep your bike looooooooooong, which I generally don't ...
Personally, the only reason I would look at an aftermarket pipe is for decent weight savings as long as it doesn't change the performance. The stock can is a little on the heavy side. I could care less about the sound.