what pipe for my 400ex

[Blasta400ex]

ok heres the scoop i need a pipe that would be good for a little mxing but i really need one for a aboutr 250 300 so drag at my friends farm...i lost to a z400....and lost to a 400 with a big gun.... so wut pipe u think...

HMF
LRD
BIG GUN
YOSH
SPARKS
give in order of wut u think 1 best 5 last

[03EX]

HMF! but thats not going to help you beet a Z400 a pipe doesnt give that much gain in hp's!

sparks x-6:macho

[jmpulse]

www.lteracing.com

It is the top hp gain with side by tests that I have ever seen.

You still won't beat a Z400. They have you by 5hp stock to stock. With a high end pipe, you could pull even to a stock Z.

[LTZ400rider]

sparks or hmf

[yellowWB400ex]

I love my R4 full system. It pulls right from the bottom and doesnt stop & sounds tits. Dont buy the T-4 it seems doggy off the start. I dont know why u would buy the X-6 who want to have the piss reved out of your motor to get it out of your pipe. Thats just my opinion.

[b400ex]

hmf

[Giz400ex]

Just get the Sparks!, Everybody else does:D But me personally I would either choose the HMF or the LRD. :D

[Gordons Well]

Duncan Fat Boy 4.
They sure win a lot.
:D

[JRDrider22]

sparks x-6

[EXtremeEXer50]

YOSHI DEFFINATELY!

[Matt400ex_17]

Big Gun Race slip on with FMF Hi-Flo header and a White bros. CDI with K&N power kit thats about all i have done to my 400 as far as motor and i beat my buddy any day of the week on any surface with his kfx 400 and a K&N power kit otherwise stock..

[nhs333x2]

why does everyone lose to a z400. If you can't beat a stock z then you need more practice, but for the exaust, i would recomend the yoshi or sparks, both give a good gain in mid and top.

The only reason i lost to a z is because they woulden't let me race in the smothe lane, the other lane is extremly bumpy but the z only wins by a bike length or less in that setup.

[nosliw]

HMF :D

[Gordons Well]

Sorry "Matt400ex_17" but beating a KFX 400 is nothing to brag about.
:)

[mattyk1221]

i draged a z400 stock for stock on my 400ex and one ....but for a pipe i recommend the yosi pro seris