It's relatively easy to offer low restriction Modified air filters out of the box.  Most competitive air filters significantly compromise efficiency and engine protection in order to achieve this flow capacity. The key to true dirt car air filter performance is not only low restriction when new, but maximum dirt stopping and dirt holding ability during events while maintaining low initial restriction levels until the chequered flag is waved.

R2C Air filters offer racers unmatched engine protection and efficiency levels exceeding 99.3% while reducing in-race restriction by as much as 60%! This means better power production and throttle response while keeping carburettors clean and operating at maximum performance levels. 15 times the dirt routinely passes through gauze air filters when compared to R2C Racing air filters.

• Increased integrity! - Strong hex air filter screens and urethane.
• 2 Stage Sealing beads - No more grease on the air cleaner base and lid

R2C Dirt Modified air filters provide performance at the highest levels, race after race.  R2C Dirt Modified air filters also save teams time and money!