Premium Air Filter for Triumph Bonneville, Scrambler, Newchurch (2002-2018). DNA replacement cotton air filters are designed to increase horsepower and acceleration while providing excellent filtration. 

Model: R-TR9S04-02
Speedmaster 800 (2003-2005)
Bonneville America 800 (2003-2005)
America 800 (2003)
America 900 (2004-2018)
Speedmaster 900 (2005-2017)

OEM Air Filter Air Flow: 127.90 CFM
DNA Air Filter Air Flow: 186.90 CFM
DNA Increased Air Flow: 46.13%
DNA Filtering Efficiency: 98-99%

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 Honda 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, 46.13% more than the Honda stock paper filter!
DNA Fcd air filter flow: 186.90 CFM (Cubic feet per minute) @1,5"H2O corrected @ 25 degrees Celsius.
Honda stock paper filter: 127.90 CFM (Cubic feet per minute) @1,5"H2O corrected @ 25 degrees Celsius.
This DNA filter is designed as a High flow filter for road and off-road use.