I Need help picking out exhaust

[quadriderkfx400]

I have an 04 Kfx 400 and I was wondering what is the best performance exhaust for it? And is it worth paying more for the full system?

[firefighterjosh]

I say full system yosh

[the fat kid]

idk compared to a yoshi but a dmc has some nice gains.

[quad9]

i have white brother mx4 and it works great.
i have used youshi on a 400ex and it was nice too.

[Z-Rider86]

I've read in magazines that HMF is supposed to give the best performance, but their are a lot of people who run Yoshimura and say they wouldn't have it any other way. Plus a lot of the pros rode with it. Personally I think it's all about how much you wanna spend. They will prolly do the same thing with same performance.

[Donkey1]

I have a sparks with a pro flow,K&n, dyna rev box. It runs great set up.