"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

R2C Polycarbonate Air Cleaner Lid

Clear Polycarbonate Air Cleaner Lid

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R2C combines maximum performance and show car looks into the best performing air cleaner lids available today!


  • Crystal Clear "Bulletproof" Polycarbonate provides the ultimate in durability
  • CFD Designed to maximize profile pressure and velocity
  • Strong and flex resistant - Creates improved sealing over aluminum lids
  • Wont bend or deflect
  • Awesome looks to display your anodized and billet carburetors,components and R2C CFD and Anodized Air Cleaner Bases

     Also available in black nylon composite.


     P/N   AC10521     Clear Polycarbonate

     P/N   AC10520     Black Composite Nylon




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  • P: 708.488.8211
  • F: 708.366.3563
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