"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

Toyota Scion FRS Cold Air Intake



As an outstanding addition for Rally and dirt racing applications, R2C intake systems provide significant torque enhancement for improved pulling power and acceleration throughout the power band. In addition, our covered air box mitigates any water and debris incursion, helping keep filters clean and dry throughout the race. Our clear, wraparound cover allows for quick filter inspection.


Race Filter Black Hex Series

        The Most Powerful Air Filters in the World!






2013-2014 Toyota Scion FRS

Subaru BRZ Cold Air Intake


Unmatched performance, sound and underhood appearance are now available for FRS / BRZ owners with R2C's new CFD designed cold air intake system.



  • CFD Designed intake system produces maximum power and torque.  +11.93 HP at 6870 RPM along with a gain of 10.7 Lb./Ft. of torque.
  • Awesome Engine Sound!

  • Choose from 3 different intake tube finishes: black powdercoat, polished or the stunning depth and clarity of R2C's black nickel option.
  • Heat shield /air box provides cool intake air temperatures and is available with standard hood edge seal or select R2C's crystal clear, show quality air box cover for show car looks!
  • Features R2C's patented lifetime 1460 CFM performance air filter for the ultimate in airflow and engine protection. Simple maintenance and No Oiling!  The best performance filter in the business!


  CAI10559L w/Composite Polymer Heat Shield Cover

  CAI10559 w/o Cover

  Now available with the new Black Hex Series street/race filter for even more power.

  Already have an intake system?   Now you too can take advantage of the power of Black Hex !  Visit the conical filter page for sizes.


   Normally ships within 48 Hrs.


Not available to California residents

  • P: 708.488.8211
  • F: 708.366.3563
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