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400ex best pipe
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Posted by: 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

Posted by: FMFBOY

MY FMF POWER CORE IS PRETTY AWSOME

Posted by: jokerman_28

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

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