I purchased a Dynatech CDI box for a 450 Rhino and it only gave me 4 more mph when I thought it should go about 50 mph instead of 41 mph. Does anyone know what I should do or have any input to get anymore power from the CDI box?

 

4mph from a CDI is great. the 450 is not going to be nearly as fast as the 660 and 700 versions. Sorry.

 

you should have just did the more common upgrades. jetting, exhaust, clutch kit, NEW four wheeler if you want to go fast.

 

Really I didn't care about going faster that to me, just indicates that I'm getting more power that way when I get the 28" tires I'll be good to go

 

well if you want more power to turn bigger tires you should have went with a clutch kit. it will give you more of the low end power you would want to turn the bigger tires. even though it should be alright stock. more power never hurts right