The new R&D Billet Exhaust Valves reduce the clearance between the valve and piston. This reduced clearance improves the seal which boosts the valve down compression ratio delivering greater bottom and mid range power. The billet engineered design is a direct performance bolt-on, guaranteed to never break in any application. Now being used by Factory Yamaha Racing.
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Product Description Price Quantity
332-12002 YAM. GP 1200R / XLT 1200 / 800R EXHAUST POWER VALVE KIT $197.39
332-13000 YAM. GP 1300R EXHAUST POWER VALVE KIT $197.39


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