I've got an 06 660 Grizzly that is bored out, and more. The problem I'm havin is it keeps over heating, I was wondering if any one has a solution. If there is some kind of twin fans or something already out there to remedy this problem or is it gonna take some fabri-mo-cation?

Also has any one yet to find a full exhaust assembly for the 450 wolverines

 

You've increased heating capacity with the engine mods, so now you'll have to increase cooling capacity to compensate. I would call Alba Racing to see what they have for the Grizzly. I know they make the best aftermarket radiator on the market for the Rhino 660.

An engine oil cooler upgrade will also help.

DV.