Join Date: Mar 2009
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RZR air filter
I have an '09 RZR S and after adding a K&N with pre filter it SLOWED DOWN. The factory filter flows better but allows more dirt into the motor. I am currently running a UNI with K&N pre-filter and the dust issue inside the intake tube has been has been solved. However, the UNI doesn't flow as well as the factory filter, (again) and my top speed has been reduced to about 61 mph. My only other mods are a full Trinity system with fuel controller and an EPI clutch kit.
Hope this helps.....