I have a 2000 Trail Boss and am thinnkinng about buying a pipe from rcr my question is if I buy a pipe will I have to rejet? is it hard if I do have to?

 

Ask Rick Ritter what jet you need with the pipe. I'm sure he can steer you in the right direction. If you're mechanically inclined, putting in a new jet is pretty easy, if not you'd be better off letting someone else do it.

 

If you're sharp enough to install the pipe with more than a crescent wrench and a pair of pliers, you can change out a main jet in a carburetor.
Make sure you have a clean area to work in so you don't get any trash in the carb.