PROX Titanium Exhaust Valve for Yamaha YZ/WR450F '03-09 and YFZ450 '04-09 – Part Number 28.2423-1

Forge one piece valves for unmatched strength

CVD/CNI coated to reduce heat and friction

Manufactured to exacting tolerances from highest grade material

All valves sold each

The PROX Titanium Exhaust Valve (Part Number 28.2423-1) is designed specifically for Yamaha YZ and WR450F models from 2003 to 2009, as well as YFZ450 models from 2004 to 2009. Crafted from high-quality titanium, this exhaust valve offers superior strength and durability, making it an excellent choice for demanding off-road and motocross applications. Its lightweight construction helps improve engine responsiveness, power output, and overall performance by reducing valve train mass and enhancing efficiency. This valve is suitable for riders seeking to upgrade their engine components with reliable, high-performance parts that withstand the rigors of competitive riding and intense use.

Features:

• Material: Made from durable titanium for strength and lightweight performance

• Compatibility: