- Stainless steel conversion kits include only what?s needed to convert your head to the long-life stainless steel Black Diamond intake valves
- Extend the life of the valve train and intake components by as much as 4x over the OEM titanium parts
- Valves are designed to not only offer the best life span over OEM, but also designed to flow and perform better than OEM components
- Components are created using Finite Element Analysis (F.E.A.) software, as well as proprietary camshaft analysis and spring design software to ensure consistent performance and accurate designs
- Specifically designed and engineered for each application
- Made in the U.S.A.
Yamaha -- YZ 250 F -- (2020, 2022, 2021, 2019); Yamaha -- WR 250 F -- (2020, 2021, 2022); Yamaha -- YZ 250 FX -- (2022, 2020, 2021)