"I used to go about a half a season and the bottom of my intake plenum would have dirt or basically just a mud consistency on the bottom and down the runners.  I was using K/N type oiled filters that need to be washed and re-oiled with dirt still getting through filter which created blow-by and rebuilds more frequently. My motor builder kept asking me if was cleaning my filter out enough. I then talked to you and tried your filter and it worked just like you said. I did not need any grease around the seal area of filter. I have used your filter for a full season and washed it multiple times throughout the season it has held up great.  I looked at my motors intake plenum at the end of this season with your filter and it was completely clean!  Your product works exceptional, it works just like you guys at R2C said it would! 

Ray Bollinger

Polaris RZR Air Filter

Polaris RZR  Air Filter -1000
Polaris RZR 1000 Extreme Series Air Filter

View Larger


R2C Testing Lab

Flow Bench

That's a UMP canister undergoing restriction and efficiency testing.

Results showed a very high restriction level and an average performing paper filter.

Fractional efficiency was under 30% .


Filter media shown at identical microscopic power levels.

Cotton Gauze media midcroscope

Here is why oiled gauze filters cause Polaris

owners so much trouble!  Very poor dust stopping ability.


R2C Performance Media 1

R2C Extreme Series filter media fiber structure. 

And it flows just as much air as the open gauze shown above!





Read what RZR owners are saying about their R2C Air Filters:

23 done b

Click Here for reviews and feedback


A common question we receive:  Should I use a pre-filter or not?


Why and when would pre-filter use be considered?

  • It stops fine dust and keeps your engine cleaner - That is False

Pre-Filters do not stop dust from entering the filter media.

Pre-filters, regardless of make, have openings sized at 130-140 Microns. Even the poorest performing filters, such as oiled gauze or foam, have no trouble stopping particles this large. The particles that your RZR engine air filter routinely deals with are a fraction of that size.  1-10 micron sized particulate is normal, regardless of the operating conditions.

* Imagine throwing a basketball through a garage door opening. That's an accurate relationship between particle size and pre-filter opening.


  • Pre-filters keep large debris and mud out of air filter screens and media - This is True

When air filters are exposed to large debris, a pre-filter can act as a deflector and prevent the filter screen and media from becoming plugged. This is not normally the case when using the factory air box.


  •  Pre-filters add restriction and can have an impact on air flow - This is True

While pre-filters do increase pressure drop, it's normally not by a great deal. We can see a restriction increase of .7" w.g. on the manometer when clean. When filters are exposed, that level of increase can occur by virtue of mud or large debris becoming lodged in the filter screen. R2C pre-filters are normally an asset on exposed filters.


  •  Pre-filters can reduce the amount of dust holding capacity and cause a more rapid climb in restriction - This is True

R2C Extreme Series filters for Polaris applications actually have the ability to shed the accumulated dust cake through normal oscillation that occurs while riding. The fast moving particulate moves through the pre-filter's 130 micron openings but is not allowed to fall back into the air box easily. The speed required to escape the pre-filter is not present when moving against air flow.


Washing Filters:

R2C filters feature a specially designed media that allows performance and efficiency to be restored to near new each time by simply using compressed air from inside out, making frequent washing unnecessary in order to restore filter performance.

R2C Polaris air filters feature a media that is fully compatible with washing.  Biodegradable cleaners such as Simple Green or other mild shop degreasers can be used. Simply place the filter in a light solution or spray the cleaner on the filter. Allow the solution to loosen the particulate for a few minutes and then rinse thoroughly. Shake the filter to remove residual water and allow a full day or two to dry. Do not apply aggressive compressed air to filters while wet.  While the media may discolor, filter efficiency and restriction are not affected.

* Follow the dilution and application time instructions for light cleaning and for aluminum as indicated by the cleaning product manufacturer.



 Contact R2C for international shipping and AK and HI.


put an End to the problem of dust and dirt in your Polaris RZR engine Now! 




No longer is there a need to risk dust and dirt entering and damaging your Polaris RZR engines!  R2C Polaris RZR air filters are designed for the most grueling conditions your RZR will encounter and will keep your engines clean!


One of the first and most important things you can do for your RZR is to eliminate the factory air filter problems. R2C offers replacement, reusable air filters for the 800, 900 and 1000 models that eliminate engine damaging dust and dirt.
The factory cellulose (paper) filter offers fractional effieciency of approximately 30% on very fine dust.  R2C air filters raise the fractional efficiency by almost 3 times over the stock filter, keeping your engines clean in the most severe conditions!
Protect your RZR engine and Save Money!

R2C RZR air filters offer unmatched engine protection and easy maintenance in a long-life, oil-free, high performance air filter.  R2C's tough, synthetic fiber structure stops and holds dust to .3 microns!  These filters rely on advanced military media technology and are designed for severe duty use.  R2C air filters will outperform every competitive filter produced for Polaris applications.  They're incredibly easy to maintain too!  This specially designed filter media allows you to remove dust using compressed air from inside-out or vacuum the exterior.

In less than a minute your R2C filter performance is fully restored!  R2C filters are also washable for long life performance and value.

*Do not attempt to remove dust from cellulose (paper) media using compressed air. Cellulose media is NOT designed for removing dust cake in this manner and it can easily result in media failure. The initial failures or fissures created in cellulose media from compressed air cleaning normally can't be seen by eye but your engine will soon know a media failure occurred.

It's not a bad idea to have your engine oil analyzed from time to time. This provides a good barometer of how well your air filter is performing as well as giving you a good general idea of lubrication efficiency.  We perform these tests regularly when designing filter media for each specific application. Compare silicon levels between OEM and R2C Extreme Series filters and you'll quickly see the engine protection benefits.

RZR XP 1000, RZR XP 900 and RZR 800 Extreme Series, Severe Duty Air Filters benefits:


  • Clamp on mounting for positive seal - Ends leaking/dust ingress around the seal.
  • 47% Increase in dust holding over the OEM filter - Maximum power and extended service intervals
  • 99.992 efficiency - Unmatched on ISO fine dust. - Keeps the finest dust and silt out of your engine!
  • Washable and Reusable - Super-tough, synthetic hybrid fiber structure specifically designed for a simple maintenance routine using compressed air or vacuum.  Wash when needed.  Last's for years, saving you unnecessary expense!
  • No Oiling!

      Great for Off-Road, Sand, Trail Riding or Anywhere you ride your RZR!



Polaris RZR Air Filter Applications

OR10508 - Fits RZR 1000 and Turbo 1000

OR10517 - Fits 2015 RZR 900 and 2016 General 1000

OR10513 - Fits RZR 800

PF13000S -Fits RZR 900 w/Panel Filter (2014 and earlier)

          OR10511 - Fits Polaris 170 vehicles

RZR 570 available soon!

Watch for our Extreme Series Polaris RZR Oil Filters too!





SIDE BY SIDE OUTLET (IDAHO): 208-881-5949 

ROCKY MOUNTAIN ATV  1-800-336-5437       

BOONDOCKERS (IDAHO): 208-542-4411


CUTTER LOOSE: 403-394-2000


R2C's New Phone Number: 847-970-9566

 Contact us at racing@r2cperformance.com for AK, HI and international shipping costs.

R2C Extreme Series Premium Air Filters

  • P: 708.488.8211
  • F: 708.366.3563
Receive the latest news and special offers!