What kind of aftermarket cdi s are available for the 660 Griz. I already have the hmf pipe and jet kit, will I have to rejet if I put on a performance cdi?

 

VDI is a great CDI for the Grizzly. Go with it!

 

I just got off the Velocity devices site , wow expensive and it sounds like you have to program it or something . and the $$ is sort of high almost 2times higher than the dynatek. Im sure it is better than the dynatek but wow. Does anyone have the dynateck on thier Griz and is it good?I will spend $208 for more performance.

 

Any others?