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Monday 27 September 2021


Improved Air Flow

Cotton filter media specialist DNA has added to its high-performance air filter design series with this new air filter fitment for various of the 107 and 114" M-8 Harley models (2017-2021).

DNA says that the filtering efficiency of its 4-layer cotton design is "very high" at 98-99% (ISO 5011), delivering +5.43% greater flow than the stock filter that Harley uses.


The DNA filter air flow is measured at 80.14 CFM (cubic feet per minute) at 1.5" H20 corrected at 25 degrees Celsius (77 degrees F) compared to 76.02 CFM for the stock filter. They are available for road and race use.