- Top factory teams and riders around the world choose Twin Air dual-stage air filters
- Dual-bonded foam design filters out even the smallest dirt particles, while allowing more airflow than two separate layer filters (flow bench proven)
- Flat foam sealing ring securely seats against the airbox, even in the worst riding conditions
- 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
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2007-2009 | Yamaha | Big Bear 250 YFM250B | |
| 2000-2002 | Yamaha | Big Bear 400 YFM400 | |
| 2004 | Yamaha | Big Bear 400 YFM400 | |
| 2000-2002 | Yamaha | Big Bear 400 YFM400F 4x4 | |
| 2004-2006 | Yamaha | Big Bear 400 YFM400F 4x4 | |
| 2007-2012 | Yamaha | Big Bear 400 YFM400FB 4x4 IRS | |
| 2003 | Yamaha | Big Bear 400 YFM400FW 4x4 | |
| 2003 | Yamaha | Big Bear 400 YFM400N | |
| 2005-2006 | Yamaha | Bruin 250 YFM250B | |