exrider249
04-28-2013, 11:19 PM
What are some good mods for a 400ex? i do alot of woods riding and hill climbing. Right now my 400ex has 416 weisco piston and a hot rod crank. I am about to have the head ported and polished, stage 1 cam and kibblewhite valves and spring kit. What are some good mods to do? I want to get to run like a trx450r if thats possible.