BOYESEN PRO-47 BOYESEN REEDS, Boyesen Pro Series Reeds - PRO Air Filters YAMAHA YZ250F 03-06 YZ450F 03-09

YAMAHA YZ250F 03-06 YZ450F 03-09 WR250F 03-06 WR450F 03-06

(MPN): ETM00246600

(MPN): SMC11010018HD

Do not iron

BOYESEN PRO-47 BOYESEN REEDS, Boyesen Pro Series Reeds - PRO Air Filters YAMAHA YZ250F 03-06 YZ450F 03-09Boyesen Pro Series Reeds PRO 47 Get the edge of Boyesens patented dual stage reed design plus the latest in carbon fiber technology Carbon fiber top reed and a durable fiberglass epoxy bottom reed Features the quickest acceleration any reed can offer while maximizing horsepower and torque Quick and precise response to changes in piston speed delivers smooth, dependable throttle response You wont sacrifice reed life as you might with traditional carbon