400ex best pipe

[jpaul]

what is the best pipe for a 400ex? should I buy a slip-on, how do i gain more power.. I want the best pipe, no matter the noise, here noise is not an issue

thanks

[FMFBOY]

MY FMF POWER CORE IS PRETTY AWSOME:bandit:

[jokerman_28]

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

http://www.260111.s5.com/testtrx400escapes.htm