Description
Features
- Stainless steel conversion kit includes only what's needed to convert your head to the long-life stainless steel Black Diamond intake valves
 - Extends the life of the valvetrain and intake components by as much as 4x over the OEM titanium parts
 - Includes forged one-piece stainless steel intake valves, wound chrome-silicon heat-treated wire valve springs, ultra-light titanium retainers and hardened steel bases
 - Components are created using Finite Element Analysis (F.E.A.) software, as well as proprietary camshaft analysis and spring design software
 - Specifically designed and engineered for each application
 - Made in the USA
 
| Position | Notes | |||
|---|---|---|---|---|
| 2003-2009 | Yamaha | YZ450F | - | - | 
| 2003-2016 | Yamaha | WR450F | - | - | 
| 2009-2020 | Yamaha | YFZ450R | - | - | 
| 2004-2009 | Yamaha | YFZ450 | - | - | 
| 2010-2011 | Yamaha | YFZ450X | - | - | 
| 2009, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 | Yamaha | YFZ 450 X 4x2 | - | - |