Seller notes

Sick of doing valve adjustments yet? You’re not alone. Pick up a Steel Intake Valve Kit from Pro X for some valves that will last a seriously long time without giving up any performance. Pro X manufactures these exhaust valves so close to OEM specs you can reuse the same retainers, bases, and seals without any modifications. It all begins with a 21-4N stainless steel valve that is black nitrided for an unprecedented combination of core strength and surface friction reduction. Then comes th...

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