can i replce my exhaust with a race pipe?

you can buy your own one and put it on but be aware that most of them will need lighter variator rollers to go with it and also some need to have the carb up jetted to run wih it,the thing is the expansion chamber type exhausts are alot free'er flowing and the back pressure made by them isnt enough to get the engine running right so thats why you need to increase the revs by fitting light weight rollers that make the revs higher and therefore raise the back pressure in the exhaust.

adam bike doctor(of milton keynes motorcycle centre)
December 2010