I picked up the Pure Polaris RZR True Flow Air Filter at the dealer and checked the part numbers, the stock SP800 air filter and stock RZR air filter are the same.

It fits right in, no problems, the quad is a little louder and it felt a little faster after riding for a few minutes, just with this filter it pulls the front end up a little higher than it did before when in high.

Also I went and talked to the service dept and they said if something went wrong with the bike (rings) and you had a UNI or a K&N, it could possibly void the warranty, but with this "Pure Polaris" part you would be fine.

http://www.purepolaris.com/Det...652(PolarisPGACatalog)