BOYESEN SNOWMOBILE POWER REED (539) SKI-DOO GSX SE 800R E-TEC Cylinder Works Standard Bore Cylinder

Cylinder Works Standard Bore Cylinder

Coating: Full Stainless Steel Muffler

Some tests have shown this feature can increase horsepower and fuel economy by up to 6%

you will need to order two "-K" sets to have the required four gaskets

More over rev so you can run a gear longer going into a corner or jump

BOYESEN SNOWMOBILE POWER REED (539) SKI-DOO GSX SE 800R E-TEC Cylinder Works Standard Bore CylinderBOYESEN SNOWMOBILE POWER REED Boyesen's patented dual stage design incorporates a specially shaped top reed and a ported bottom reed. The top reed is lightweight and resilient for crisp throttle response at partial throttle or low RPMs. The stiffer, bottom reed is ported to provide maximum flow and horsepower at higher RPMs. More valves equals more power More Air Flow. The dual stage design allows you to replace your stock reed stop with a Rev Plate