- Dual-bonded foam design filters out even the smallest dirt particles, while allowing more airflow than two separate layer filters flow bench proven
- Twin Air filters are slightly smaller than stock to make them easier to change and to increase dead air space around the filter for better performance
- Flat foam sealing ring securely seats against the airbox, even in the worst riding conditions
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2001-2002 | Yamaha | WR250F | |
| 1998-1999 | Yamaha | WR400F | |
| 2001-2002 | Yamaha | WR426F | |
| 2001-2013 | Yamaha | YZ250F | |
| 1998-1999 | Yamaha | YZ400F | |
| 2000-2002 | Yamaha | YZ426F | |
| 2003-2009 | Yamaha | YZ450F | |