Big Gun rev box

[4TraxRider]

I just got the new RockyMountian cataloug adn noticed teh big gun rev box. It says it pumps out 2 more hp when installed. I doubt that, but was wondering if anyonehas tried it and noticed anything. If it really does it seems like its a pretty good bang for the buck upgrade, only $95 now. Thanks

[Castor-426ex]

same thing as wb rev box

i beleive its all the same thing that comes off an xr250:confused:

[4TraxRider]

Yeah, that's what i thought. Thought they might have come out with something different. Thanks a lot.

[spud400ex]

the big gun rev box gives 2000 rpm high redline. according to atvaction you will lose a little bottum end but there are supposed to midrange and top end gains.