MOOSE Offroad Valve and Spring Kit for Yamaha YZ450FX and YZ450F – Part M80-81100

Upgrade your Yamaha YZ450FX or YZ450F with the MOOSE Offroad Valve and Spring Kit, part number M80-81100. Crafted from high-quality stainless steel, this conversion kit includes all essential components needed to replace your stock intake valves with long-life Black Diamond™ or White Diamond® variants. Designed to extend the valve train's lifespan by up to four times compared to OEM titanium parts, these valves also enhance performance and durability.
Each component in this kit is engineered using advanced Finite Element Analysis (F.E.A.) software, proprietary camshaft analysis, and spring design tools. This meticulous process ensures that every part offers consistent performance, precise fitment, and optimal flow characteristics. The valves are specifically designed for each application, guaranteeing a perfect fit and reliable operation under demanding conditions. Made in the USA, this kit combines quality, longevity, and improved performance for serious off-road enthusiasts.
The kit's features include durable stainless steel construction, optimized flow design for better engine breathing, and components tailored for your specific Yamaha model. Installation of this kit can significantly enhance engine efficiency, reduce maintenance intervals, and improve overall riding experience. Whether you're racing or riding for recreation, the MOOSE Offroad Valve and Spring Kit is a reliable upgrade that provides long-term value and superior performance.

Features:

• Stainless steel construction for durability and longevity

• Designed to extend valve train life up to 4 times longer than OEM titanium valves

• Engineered using Finite Element Analysis (F.E.A.) and proprietary software for optimal performance

• Specifically tailored for Yamaha YZ450FX and YZ450F models

• Made in the USA with precise manufacturing standards