i picked up my first atv 2001 honda 400ex with 21-11-10 gecko supertrap ids2 exhaust stage 2 jetting? came with k&n and no airbox lid and i believe a barnett clutch my question is would a white ros rev limmiter part#74-101 would help performance. i hear they help through all the gears by changeing the fireing would this be worth while for mild sand and trail rideing thanks for any imput.

 

Some people claim gains out of the upgrade. You want to keep your rpms in the powerband, therefore reving the thing out really isnt very helpfull when you can grab the next gear and hit the powerband again.