DNA Aprilia RSV4 + Tuono Air Filter

DNA Air filter for the RSV4 and Tuono models FITMENT: RSV4 2004-2011 / Tuono 2005-2015 FEATURES: OEM Air Filter Air Flow: 138.00 CFM DNA Air Filter Air Flow: 161.50 CFM DNA Increased Air Flow: Aprilia DNA Filtering Efficiency: 17.02% This DNA filter features DNA's advanced FCd (Full Contour design). Installation of the filter is very easy, simply follow the information that can be found in the Aprilia workshop manual. The filtering efficiency is extremely high at 98-99% filtering efficiency, with 4 layers of DNA Cotton. The flow of this DNA Fcd filter is high, 17.02% more than the APRILIA stock paper filter! DNA Fcd air filter flow: 161.50 CFM (Cubic feet per minute)@1,5"H2O corrected @ 25degrees Celsius. Aprilia stock paper filter: 138.00 CFM (Cubic feet per minute) @1,5"H2O corrected @ 25degrees Celsius. This DNA filter is designed as a High flow filter for road use and off-road use. Length and flange measurements should be added in order to calculate the total height of the filter.