Moose Offroad Valve And Spring Kit - M80-81060 Yamaha YZ 450 2010-2013 Brand_Yamaha Apparel Aluminum bar mount kit included

Aluminum bar mount kit included

Beats leading competitors by an average of 3

Mufflers make use of all of the high-tech features of Cobra's regular three-inch slip-on mufflers

Manufactured to exacting tolerances from premium materials

Moose Offroad Valve And Spring Kit - M80-81060 Yamaha YZ 450 2010-2013 Brand_Yamaha Apparel Aluminum bar mount kit includedFeatures Stainless steel conversion kits include only whats 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.)