I was thinking of getting one of these exhausts for my kfx400:
(all full systems)

-Yoshimura Comp
-HMF
-LRD Pro 4

I did some research on these particular exhausts, however I didn't get a chance to actually test any of these out. No one around me has these exhausts, I've only tried an Alba fitted quad, and a White Brothers, and I've seen a crap load of FMF pipes. So if you could recommend me one, out of these three, that you felt performed the best, that would be great.

thanks......

 

go with the Yoshimura you wont have any complaints

 

Yoshimura

 

There was a good article in either Dirt Wheels or 4-Wheel/ATV Action within the last year. They tested at least a dozen pipes on a Z400 (KFX400).