changing cdi box

[trost66]

What do you guys think about changing cdi box. Leting it rev out a little more. If a good idea who makes the best one.

[hondarider2006]

If you have a stock engine...I would leave it alone. Most of the aftermarket boxes make it a pain in the *** to start, and its not going to give you anymore power on a stock motor.

[chadmel]

I heard they do help a stock quad. I've included a link about a test on a aftermarket cdi box I found. Hope this helps.
www.douggust.com/content/products/big_gun_cdi.htm (http://www.douggust.com/content/products/big_gun_cdi.htm)

[chadmel]

I found a dyno chart comparing a modified 400ex: one run with stock cdi, one run with White Brothers cdi. Hope this helps.
http://www.geocities.com/gtthunder.geo/400cdi.jpg