Which pipe is best for the 400ex?

[Bennyboy400ex]

I need to know which full exhaust system the 400ex get the best overall power. I'm looking for emphasis on bottom and mid-range. I need a lot of info if possible (dB level, peak HP, and links to dyno results if at all possible).

Thanks!
Ben

[Diedrich]

tc,lrd,hetricks,hmf,t-4,dmc, they are all good pipes..just depends on what kind of riding u do

[hondaexryda]

i like my t-4, you can go with WB R-4 Full exhauts, or pro circuit T-4 and sparks x-4 full has good low-end and for stock motors

[exrider505]

I have a WB Pro Mega Full System. It sounds good decent overall power increase.

[foleyit]

Dirtwheels did a pipe shootout for the 400ex a while ago. Since this shootout, I'm pretty sure there are some new pipes out there. Both links have the same data, it's just easier to read on the second link, but there are dyno charts on the first link.

http://www.ctracing.com/PD_ct%20photos/dirt_wheels_march_2001.htm

http://www.dirtwheelsmag.com/detail.asp?id=181

Good luck in your decision.

[Cody_300ex]

Curtis Sparks X-6.

[Bennyboy400ex]

Thanks a lot for the results so far. I do mostly freestyle and a little bit of trail riding, so I need a powerful mid-range for launching off of jumps. Hopefully this helps to specify what kind of pipe I need.

[hondatv]

SPARKS X6 All the way!:D

[Bennyboy400ex]

I've been looking into the Yoshimura Comp full system a lot lately but I'm not sure of its performance. Any opinions? Info?