- Designed for maximum torque and power across torque curve
- Features a durable 16 gauge steel body with a lightweight aluminum rear end cap
- Includes U.S.F.S. approved, removable screen-type spark arrestor; replacement spark arrestor sold separately
- Bolts on to stock headpipe in minutes
- Repackable muffler body
- Optional Quiet Core Inserts available separately
- Made in the U.S.A.
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2004-2009 | Yamaha | YFZ450 | |
| 2012-2013 | Yamaha | YFZ450 | |
| 2009-2018 | Yamaha | YFZ450R | |
| 2016 | Yamaha | YFZ450R Special Edition | |
| 2017-2018 | Yamaha | YFZ450RSE | |
| 2009-2015 | Yamaha | YFZ450RSE Special Edition | |
| 2007 | Yamaha | YFZ450SE Special Edition | |
| 2008 | Yamaha | YFZ450SP Special Edition | |
| 2006-2007 | Yamaha | YFZ450V Bill Balance Edition | |
| 2010-2011 | Yamaha | YFZ450X | |
| 2010 | Yamaha | YFZ450X Bill Balance Edition | |
| 2011 | Yamaha | YFZ450XSE Special Edition | |