"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

Valve Cover Breathers

Black Anodized Push-In

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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 washing  unnecessary to restore filter performance.

R2C Pro Series 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 and then rinse thoroughly. Shake the filter or use compressed air from the inside outward to remove residual water and allow a full day or two to dry. While the media may discolor and become light gray, filter efficiency and restriction are not affected.

* Follow the dilution and application time instructions for light to medium cleaning as indicated by the cleaner manufacturer.






R2C Engine Valve Cover Breather Filters!

All New Advanced Media Technology!

  • Longer Service Life
  • Improved Crankcase Ventilation
  • Easy To Clean

R2C Performance valve cover breather filters are designed to offer racers the finest crankcase and tank breather technology available today. R2C's breather flange design improves oil return and significantly reduces the dripping caused by oil collected at the lower flange associated with competitors breather fllters.  R2C valve cover breather construction also ends the problems associated with cap failures. HD screens eliminate crushed breathers. R2C breathers are fully washable and can be cleaned by soaking in biodegradable solvents such as Simple Green, etc.

R2C valve cover breathers are available in red, blue and black anodized aluminum cap finishes as well as chrome plated shielded versions.

Choose from 1.25 inch, 1.38 inch, 1.5 inch and 1.75 inch clamp-on breathers or 1.25 inch push-on applications. Order yours today!


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