Description
Features
- Stage 1 is designed for low end torque
- Adds a 5%-10% power gain
- Designed and dyno proven in the USA
- Manufactured by utilizing state of the art valvetrain software
- CNC machined from 8620 billet, case-hardened steel for an exact fit and lobe profile
| Position | Notes | |||
|---|---|---|---|---|
| 2009-2021 | Yamaha | YFZ450R | - | - |
| 2010-2011 | Yamaha | YFZ450X | - | - |
| 2009-2021 | Yamaha | YFZ450R SE | - | - |
| 2010 | Yamaha | YFZ450X Bill Balance | - | - |
| 2011 | Yamaha | YFZ450X SE | - | - |
