Basically, all for your grizzlies are the exact same bike! Except for the motor and overall bike size. All of the electrionic's are the same. In simple terms, a pickup coil senses crank position,it tells the cdi box to fire the coil,the coil fires and now you have a spark at the plug.So the CDI box (the little computer) doesn't care what bike it is on. It just knows if this switch is made i do this,If this one is made i turn this off. Some of it, as with the ignition has timers built in, as in fire the coil after a (quessing) 20 millisecond delay. That is what the aftermarket boxes play with. Let's say a stock box fires 8 degrees before top dead center and fires the coil for 10 milliseconds, a aftermarket coil may fire 10 degrees before top dead center and fire the coil for 15 millisecond. Therefore the spark plug fires sooner for alonger time hense,Hopefully making you just alittle more power. I hope my ramblings help .
06 Griz Harwoods camo,26" mudlites,itp wheels,epi clutch kit,Monster power sports snorkel kit,custom "SHICKBUILT" rear bumper,Fender Flairs, Moose baggs for carring the beer,Boot guards,procomm cdi box,dynojet kit,audiopipe Ipod stereo ect.RAPTOR CAM INSTALLED,k&n air filter