- Utilize FMF's patented module precisely located at the initial stage of the header
- Key point positioning of the "Bomb" increases performance
- Horsepower is increased as much as 10%
- Act as "pre-muffler" helping to lower the decibel output
- The expansion and contraction of exhaust sonics through the system causes increased flow
- Sold each
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2003-2006 | Yamaha | WR450F | |
| 2004-2009 | Yamaha | YFZ450 | |
| 2012-2013 | Yamaha | YFZ450 | |
| 2007 | Yamaha | YFZ450SE Special Edition | |
| 2008 | Yamaha | YFZ450SP Special Edition | |
| 2006-2007 | Yamaha | YFZ450V Bill Balance Edition | |
| 2005-2006 | Yamaha | YZ450F | |