- 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 -- (2010, 2007, 2003, 2012, 2008, 2005, 2004, 2011, 2006, 2009, 2013, 2002); Yamaha -- WR 250 F -- (2004, 2003, 2002, 2013, 2006, 2007, 2009, 2008, 2005, 2010, 2011, 2012)