The Polaris 800 RZR was a revolutionary product when released and did amazing things for the industry. It was plagued with air filtration problems and although Polaris upgraded the air filter in later designs it has been susceptible to filter plugging, dirt passing by the filter and very short change intervals to maintain filtration and engine performance. Especially during trail riding when multiple machines may be kicking up additional particulates the filter plugging can be debilitating requiring frequent stops. Our filter can be run in the dustiest conditions and will purge itself of dust. With the larger element and a dual element design you can run longer and have peace of mind that the engine will not ingest dirt. The MTNTK Performance DUAL STAGE SUPER FILTER kit is a "Must Have" for the Polaris RZR 800. Because of its DUAL STAGE FILTRATION SYSTEM, this filter outdoes the elements as well as the competition. Keep dirt, dust, and sand out of your engine while keeping a few dollars in your wallet. The MTNTK Performance dual stage Filter Kit is a COMPLETE BOLT ON AND RIDE SYSTEM with no modification to OEM hardware, saving you time and money. DURABLE, easy to install and affordable this kit is a must for Polaris RZR 800 owners.