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Boyesen 557E Reed Fits SKI-Doo
- REVOLUTIONARY PERFORMANCE 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 by creating: More Air Flow.
- The dual-stage design allows you to replace your stock reed stop with a Rev-Plate which permits the reeds to open freely and function efficiently.
- More Air Velocity.
- The multi-port feature of the bottom reed creates more channels for the charge, delivering increased velocity to the intake ports.
- More Overall Power.
- Dual-stage reeds work in unison to perform efficiently throughout the entire powerband.
- The difference in stiffness between the top reed and the bottom reed allow the reeds to respond quickly and accurately to changes in engine pressure.
- This translates into quicker acceleration, crisper throttle response and increased horsepower throughout the powerband.
- Quicker acceleration for that all-important holeshot.
- Crisper throttle response for fast corner exits and surer jumps.
- More horsepower throughout the powerband for guaranteed performance.
- Improved engine efficiency and fuel economy for the long distance rider.
- Longer life - Boyesen Power Reeds outlast all other aftermarket reeds.
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