Just finished my first pass at modding my 05 400ex. This thing is meannnn. Any recommendations on what I can do next to boost it more. I think i'm addicted now. Went to the track this weekend and burnt quite a few stock 450r's and many 400's. I'm probably not going to go the 440 route but is their anything else I can do?


HMF Full
K&N
WB Cdi
450R Carb
wisco 11:1
hotcams
outerwears

 

Work on your suspension, +2 arms, extended axle and shocks all around. Get some new tires and rims also if you have the money.

 

I knwo nothing about the susp. What, and where should I get a new axel? A arms? Just some recommendations please.