What are you looking for? More low end power or top speed. In addition to the bolt ons, you can change gearing and tire diameter depending on what your trying to do.what is cheapest ways to get more out of my 01 400ex and what is most common problems on this atv thanks guys ya'll are life savers
nj couldn't have said or asked any better !..depending on how much to you is cheapest...lmfao..if your talking a few hound bucks..thier is alot you can do..if your talking a few dollars..start with re-jeting..and a bolt on after market ex..if you really want to get a top of the line atv..then you better break out your check book..thier isn't anything cheap about making these thigns fly like a rocket..boring..larger piston..bigger cam..bigger valves..porting...larger carb..bigger jets..change the front and rear sprocket size..go to a smaller tire size in the rear...soooo many things that can add up to more power..more top end..depends on how large your bank account is..lol.What are you looking for? More low end power or top speed. In addition to the bolt ons, you can change gearing and tire diameter depending on what your trying to do.what is cheapest ways to get more out of my 01 400ex and what is most common problems on this atv thanks guys ya'll are life savers