Boyesen Power Wing Yamaha Yz450F 07-11, Wr450F 07-11 Use Pw-32 GPX 4.5 · Yamaha WR250R 2010 /

· Yamaha WR250R 2010 / WR250X 2011

· Honda CR85 2011

KTM 125 EXC 2010-2017

whereas the outer hinges durable metal gears offer precise movement

· Kawasaki KX80 1997 / KX100 1997

Boyesen Power Wing Yamaha Yz450F 07-11, Wr450F 07-11 Use Pw-32 GPX 4.5 · Yamaha WR250R 2010 /The Boyesen Powerwing is the perfect air delivery enhancement upgrade used to increase horsepower and torque by maximizing your intake system. The Powerwing's unique design maximizes airflow to increase horsepower, torque and responsiveness, without restrictions to your existing carburetor. Precision fit engineering ensures easy installation in each make and model available. The Boyesen Powerwing is designed to increase air velocity inside your