funny enough i actually really like my fmf too...i mean i have only ridden stock pipe and fmf....but i have seen a fmf dyno, and i know that it comes on really hard really fast and then kinda falls on its face the rest of the way up, but somehow the way i ride with it i always seem to be in that rpm range where it is hittin hard, i dont like to rev the crap outta my motor to make power way up top, so i like that my fmf peaks hard and narrow in the mid range. Bottom line is each pipe has its own characteristics, and it really is kinda hard to compare them when one may be badass up top but not as good on bottom, while another maybe real good down low but have zero balls up top....how can you say which one is better? to each his own, and as long as it makes good power where you want it to why does it matter...do your homework...get a pipe that fits your riding style and not because it "is the best" ....theres no such thing as a perfect pipe...