RZR 1000 Engine air filter October 1, 2015 has anyone used the R2C air filter? need to change my stock, want to go to either the Polaris Donaldson or R2C because it can be serviced. just want to make sure it’s as good as they say unlike K&N. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related