04gsx6r

You guys that are running a z400 what exhaust are you using?

Tireguy405

HMF...nice fit,finish,but very loud. If i knew i was just gonna stunt my quad i probably would have never even piped it.

cexodusk

Yoshi's pipes are good..

But pretty much any aftermarket pipe i have seen are loud as ****.

Pipe and stage 2 jet kit will give it some extra juice though

Going down a tooth up front is good for better acceleration also.

David D

stright stock you dont need anything else for wheelies.......

austinz400

im with david stock for stunting

mmeastcoast

Yoshimura, pretty loud, gave my KFX a nice boost with the Dynojet kit...

04gsx6r

so stock it is

rookie stunter

i put a fmf powercore slip on on my kfx400 i really didnt see any big power gain. it is loud as **** but it does sound sweet. the only thing about is was that it was a little long and when i scraped the bar i scraped the end cap too...so now i dont have an end cap. if u do go aftermarkwt just dont jet it if u want to do any smooth slow wheelies. jets seem to really **** that up.

JD_ATC200

I'm running the Yosh TriMetal carbon Comp series and the pipe is the ****, power up the *** and sounds great. Don't even worry about jet kits just throw the pipe on.