hmm iv never used 1 yself but i wouldnt think that was great cratch: what kinda money u got to spend on a pipe?
ive used a kundo pipe on my speedfight, they give a pretty good increase in top speed, but are a bastard to set up for low to mid range... The kundo 125cc pipes are garbage though, in an exhaust dyno shoot out i read in TAG magazine, they actually make less power than the stock pipe