Coloradoon22 - As far as performance, I don't feel a difference, but then again, I'm taking it easy since I'm still wet behind the ears when it comes to bikes.
I love the way it sounds though! The slipon got rid of the whiny honda sound that this old bike made. Now it just sounds mean. :mg
I read on the Yosh site that the street version makes next to no noise so I went with the race version. Both slipons aren't street legal, so I went with the race RS-3 instead of the street.
TheSollyLama - Very nice YZF, looks very clean with the new pipe!
Firefighter81 - Thanks man, I'm glad I was able to find something clean within my budget. My friends that aren't really into bikes actually thought it was a new bike. When I told them, "no way, it's a 1991 F2", they were very surprised.
I guess it's up to me now to keep it clean like the previous owner did.