Is it worth getting a CDI box for the grizzly? Will I notice a difference in performance? If so, what are some good companies that sell cdi boxes for the grizzly? I have a aftermarket pipe(hmf), k/n air filter, and dyno jet kit as well.

 

i dont know, but find a box that also advances the timing, as well as raising the rev limiter. raising the limiter alone isnt worth any Hp really..

 

Procomm engineering is the only company i know of that sells an aftermarket cdi for the Grizz...it only raises the rev-limiter 1000rpms and some guys say they can feel the torque difference...with your current mods you'll feel some more power but with a 686 big bore kit with a hotcams cam you'll be great...just make sure you set aside some cash for aftermarket axles...