MOPED ARMY

I don't know about _less_ top end but the pipe has a supercharger effect when it kicks in and if you have too much compression then it could ping or detonate when its at high rpms and you might not even hear it so don't wreck your piston playin around too much. I always hear that a good pipe can be the equivalent of 14lbs boost from a turbocharger. People have sheared there crankshafts and everything b4