Boyesen reed valve kits will fit Arctic Cat models below:
4000 All Models 2015-2017
500 Crossfire 2007-2009
500 F5 Sabercat EFI 2006-2016
500 Sno Pro 2011-2014
600 Cross Fire 2006-2011
600 F6 EFI 2004-2011
600 M6 EFI 2005-2011
600 Mountain Cat EFI 2004
700 M7 EFI 2005-2006
800 Cross Fire, F8, M8 2007-2009
800 Mtn Cat ZR, ZL EFI 2001-2004
900 Mtn Cat, ZR, ZL EFI 2003-2006
Dual Stage Reeds
- Made with Dura-Flex for superior Strength & flexibility
- Minor change for major HP improvements
- Faster opening and closing
- Greater low-pressure(low throttle) response
- Greater velocity
- Greater flow area
- Longer overall life
- No engine damage if broken
Please be advised that the reed pictures are generic pictures and do not always reflect actual set of reeds.
Free Shipping only applies to US orders.
All kits include enough reed sets for one motor, order one kit for one motor.
Contents: Full set for all cages.
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 power band. 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 power band.