Which is a better exhuast the e-series or fmf powercore 4? Which one is louder?

 

i've always used e-series exhausts on xr's but no
experience on atv's. it has always been superior
on low rpms and i like technical type riding(rocks
and fallen trees). i hope white bros. will make
one for my rancher soon.
loafie

 

I JUST PUT THE FMF ON MY EXER,JETTED THE WAY MY DYNOJET SAIS TO AND PRESTO,SEEMS LIKE I LOST A TINY LOW END, BUT PULLS VERY STRONG EVERY WHERE ELSE.I REALLY LIKE IT.IVE HEARD NOTHING NEGATIVE ABOUT THE E-SERIES SEEMS TO BE A NICE PIPE ALSO.ITS A TUFF CHOICE.

 

Both great exhausts. I have the FMF, and my buddy has a WB on his 400. I really can't tell you which is better, because we've never put them on the dyno or anything. They are both good though. Anyway, do you're research, and then, you'll probably be ready to make your choice. Good luck.