This 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 BMW 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 very high, 27.95% more than the BMW stock paper filter!DNA Fcd air filter flow: 92.05 CFM (Cubic feet per minute) @1,5"H2O corrected @ 25degrees CelsiusBMW stock paper filter: 71.94 CFM (Cubic feet per minute) @1,5"H2O corrected @ 25degrees CelsiusThis DNA filter is designed as a High flow filter for road and off road useCompatible with:F 650 GS 2008-2012F 650 GS Dakar 2009F 650 GS 2009-2012F 700 GS 2013-2018F 800 S 2006-2011F 800 GT 2011-2017F 800 ST 2006-2012F 800 R 2009-2017F 800 GS 2008-2018F 800 GS Adventure 2012-2018