the Yoshi is 100% better slip-on than the FMF. The Yoshi makes LOTS more power all around and fit better, my biggest complaint with the FMF was it stuck out past the grab bar, the Yoshi dosen't!!!! the Yoshi also sounds cooler

I highly recomend the Yoshi slip-on for the 400ex. I haven't tried any other except the FMF, but the Yoshi is the hands down winner.

 

white brothers e-series elliptical disc sistem, pipe of my choice......... just my thought( not trying to make eney one mad)

 

yoshi is to much money. hmf is just as good or better my 02 cents.

 

Can you run the 93db insert in the Yoshi like they advertise?

 

I know they make different insets for the Yoshi, not sure how they work or how much they lower the sound level. I know Yoshi's are expensive new, but I got this one used, $140 shipped[img]i/expressions/face-icon-small-cool.gif[/img]