Seller notes

Boyesen Rad Valve Developed with Factory Yamaha, Pro Circuit, Factory Kawasaki of Europe, Factory KTM and top pros like Jeremy McGrath, Sebastian Tortelli and many others Specially designed reed cage now comes with carbon fiber Pro Series reeds Maintains flow velocity through the valve and redirects intake charge for even distribution to intake ports Pull a gear higher on uphills; instant acceleration makes passing effortless Made of one-piece aluminum casting and bolts in easily; no modificatio...

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