performance cdi box

I know a couple guys are running Hot shots CDI. I bought one too but haven't used it yet. Suppose to be better than stock , Higher redline limit, smoother throttle, but don't know yet.
 
pipe, uni air filter, even just taking the airbox lid off and going up a jet size or so will be a good upgrade, and jets are cheap
 
the cdi box will override your rev limiter. but ive heard if you over rev your bike once you install the cdi box then you can blow your top end real easy. but i dont know for sure