is FMF exhaust any good?

[400EXracer74]

i had FMF exhaust on my 400 ex and i loved it but im not seeing any 450s with it. is it not any good anymore? or have other companies just becomg much more advanced?

[Evil_Apoc]

Good question, i was thinking about going with a Yosh, but really, has anyone dyno tested different exhausts to see what has the best gains??

[Mobile Dyno]

Yes, I have a 450r pipe comparison that we did on my site. www.precision-ms.com. I have pics and graphs. IMO Rossier Engineering is a great pipe with a great price. Awesome power delivery. My second is HMF.

[Evil_Apoc]

Thanks :D