I just got my KFX 400 about a month ago and I am ready to start making some modifications to it. Most everybody is saying K&N Air Filter and a pipe. I was looking toward Yoshimura, but I really do not know. Any advice you guys can give would be greatly appreciated.

 

You'll get a hundred different answers of which pipe is best. I've searched all over and the two that are recommended the most are probably the yoshi and the HMF. If you've got a green KFX HMF has a sweet green powder coated pipe. Check it out at sweetquads.com. Or PM me and I'll send you a pic of one.

 

No I got the blazing orange kfx. I was looking at the Yoshimura RS3 Comp Stainless Steel Full System. Seems like it might be a good pipe. What do you think? thank you for the help.

 

I haven't heard anything bad about the yosh. That's what Doug Gust uses on his quad so it can't be all that bad. Rocky Mountain ATV has the best prices I've see for the pipe that you're looking for. Do a search on this site for "z400 pipe" / "z400 exhaust" or the same search on other sites and you'll get tons of info. It might confuse you more because everybody has their opinion. IMO you can't go wrong with the yosh[img]i/expressions/face-icon-small-happy.gif[/img]

 

yoshi and hmf are very good picks for the 400 .but you might look at the pulsecharger pipe too