Seller notes

NOTE: Image is for reference only, actual product may vary slightly depending on your specific application. ProX Steel Intake Valve & Spring Kit #28.SIS2424-2 fits Yamaha WR450F/YZ450F Product Details Replaces the OE valves and valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsStronger valve springs deal with the extra weight of the steel valvesSprings are made from premium chrome vanadium steel for higher performance and durability at high rpmKit...

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