Moose Racing Valve And Spring Kit M80-80960

• 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 450 F -- (2007, 2008, 2004, 2003, 2009, 2005, 2006); Yamaha -- WR 450 F -- (2011, 2009, 2004, 2006, 2003, 2005, 2008, 2013, 2010, 2007, 2012, 2014); Yamaha -- YFZ 450 4x2 -- (2014, 2008, 2013, 2010, 2007, 2012, 2006, 2011, 2017, 2005, 2009, 2015, 2016, 2018, 2004); Yamaha -- YFZ 450 X 4x2 -- (2011, 2014, 2018, 2007, 2015, 2005, 2008, 2010, 2012, 2006, 2009, 2013, 2004, 2016, 2017); Yamaha -- YFZ 450R SE 4x2 -- (2015, 2012, 2009, 2010, 2011, 2017, 2013, 2014, 2016, 2018); Yamaha -- YFZ 450R 4x2 -- (2011, 2016, 2010, 2014, 2018, 2013, 2012, 2015, 2009, 2017); Yamaha -- YFZ 450 LE 4x2 -- (2005, 2004); Yamaha -- YFZ 450 SE 4x2 -- (2007, 2008, 2006); Yamaha -- YFZ 450 Bill Balance Edition 4x2 -- (2006, 2007); Yamaha -- YFZ 450 X Bill Balance Edition 4x2 -- (2010); Yamaha -- YFZ 450 X SE 4x2 -- (2011)