Rev Box Question

[400exracing]

I know every one is agents rev boxes and to go for a cdi but i was looking for a cheap fast up grade. How bad is it to put in a rev box? what would be the best rev box? spr, big gun, magnum let me know what u think

[GPracer2500]

For most applications a "rev box" is a replacement CDI. I'm not aware of any units that plug in-line or anything that provide extra rpm. They just replace the existing CDI box.

[pimpin330ex]

400exracing if you dont mind me asking what part of mass. are you from?

[cals400ex]

no need for a rev box until you have a higher revving cam. when you hit the rev limiter when racing then you know it is getting to be about time.

[1fst400]

If you want to get one real cheep I will let mine go. I no longer have a use for it, because I swaped motors. Its a wite bros, worked flawlesly when I took it of a cuple months ago.