I just ordered my new pipe (proma gp) and i have no speed increase whatsoever. maybe like a half a mile an hour. it sounds pretty cool. I'm pretty sure upjetting will help because it sounds like its starving for a little more something. I'm kinda scared to ride it because I don't want it to seize or anything like that.
shouldn't i have at least some speed increase with a new pipe? even if i haven't upjetted yet?
1980 puch murray.