what are a list of the cheap and easy mods for a 2002 400ex and 2005 450r looking for that edge. My buddy seems to find them but i cant seem to find them and i want to one up him

thanks

 

The standard stuff is open up the airbox, high-flow aftermarket air filter, aftermarket header and muffler, and of course a rejet. On the 450R, the HRC kit will give you the most bang for your buck (nets mostly mid and top end)!!!

Gearing changes are fairly inexpensive. http://forums.atvconnection.co...tid/18/threadid/538607