DNA air filter element

This filter features DNA®'s advanced FCd (Full Contour design). To install this DNA Air filter follow the installation instructions included in the workshop manual. The filtering efficiency is extremely high at 98-99% filtering efficiency (ISO 5011), with 4 layers of DNA® Cotton. The flow of this DNA filter is +36.70% more than the stock filter! DNA air filter flow: 149.00 CFM (Cubic feet per minute) @1,5"H2O corrected @ 25degrees Celsius APRILIA stock filter's flow: 109.00 CFM (Cubic feet per minute) @1,5"H2O corrected @ 25degrees Celsius. This DNA® filter is designed as a High Flow Air filter for: Road & Race use'. This DNA® filter is designed to be 'spark safe'' for racing use on highly tuned engines. / Fitment: Aprilia: 20-21 RS 660 660cc; 21-22 TUONO 660 660cc