





photos are representational: Accuracy is ensured by Part Numbers.
A POWERFUL SOLUTION TO A SIMPLE PROBLEM
Designed for 2012 ski doo Summit 600 HO E-TEC, this Boyesen component is built to support dependable fitment, durability, and reliable performance for serious riders.
One reed petal is NOT enough! The reed petals in all 2 stroke engines take an incredible amount of abuse! At peak RPM, reed petals are opening and closing hundreds of times per second. Over time, a single reed loses its ability to regulate flow rates in proper proportions. This causes a loss of reed petal reaction and reduces the consistency of peak horsepower. Boyesen's revolutionary dual-stage reed design delivers more usable power than stock. Stock single-stage reeds operate most effectively within a relatively narrow RPM range and are limited because of the single stage design. Boyesen's one soft reed on top of one firm flow-through reed gives you a wide range of intake control, plus increased intake velocity. Your original reeds can't possibly duplicate that performance. 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. The multi-port feature of the bottom reed creates more channels for the charge, delivering increased velocity to the intake ports and generating 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.
THE BOYESEN POWER REED ADVANTAGE
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.


MS PLUS FLOW OPTIMIZATION
The patented multi-stage design incorporates a specially shaped top reed petal and a ported bottom reed petal. The top petal is lightweight and resilient for crisp throttle response at partial throttle or low RPM. The stiffer, bottom petal is ported to provide maximum flow and horsepower at higher RPM. By using a multiple reed petal stack, it is possible to acheive peak horsepower, more torque, improved stall resistance and greater overall reed durability.
FREE REVING POWER
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. This results in a free reving, yet extremely smooth power delivery with an improved connection between your hand, the rear wheel and the terrain.part number cross reference
| boyesen part number | serial number (start) | serial number (end) | UPC number | eu hts number | Southern number |
|---|---|---|---|---|---|
| RB-20 | 804429508402 | ||||
| parts unlimited | parts europe | tucker rocky | wpc | apico int | |
| 59-1523CB | |||||
| bihr | dist 1 | dist 2 | dist 3 | dist 4 | |
Applications
| Machine type | make | model | year range | cc | FUEL SYSTEM | CYLINDERS |
|---|---|---|---|---|---|---|
| SNOWMOBILE | arctic cat | CF 8 | 2010-2010 | 800 | ||
| SNOWMOBILE | arctic cat | CF 8 Sno Pro | 2010-2011 | 800 | ||
| SNOWMOBILE | arctic cat | CFR 1000 | 2009-2011 | 1000 | ||
| SNOWMOBILE | arctic cat | CFR 8 | 2010-2011 | 800 | ||
| SNOWMOBILE | arctic cat | Crossfire 800 | 2010-2017 | 800 | ||
| SNOWMOBILE | arctic cat | F 8 | 2010-2010 | 800 | ||
| SNOWMOBILE | arctic cat | F 8 Sno Pro | 2010-2011 | 800 | ||
| SNOWMOBILE | arctic cat | F 800 LXR | 2012-2013 | 800 | ||
| SNOWMOBILE | arctic cat | F 800 Sno Pro | 2012-2013 | 800 | ||
| SNOWMOBILE | arctic cat | M 8 | 2010-2011 | 800 | ||
| SNOWMOBILE | arctic cat | M 8 Sno Pro | 2010-2011 | 800 | ||
| SNOWMOBILE | arctic cat | M 800 | 2012-2013 | 800 | ||
| SNOWMOBILE | arctic cat | M 800 Sno Pro | 2012-2013 | 800 | ||
| SNOWMOBILE | arctic cat | M 8000 | 2014-2017 | 800 | ||
| SNOWMOBILE | arctic cat | XF 800 | 2012-2017 | 800 | ||
| SNOWMOBILE | arctic cat | ZR 8000 El Tigre | 2016-2017 | 800 | ||
| SNOWMOBILE | arctic cat | ZR 8000 LTD | 2016-2017 | 800 | ||
| SNOWMOBILE | arctic cat | ZR 8000 LXR | 2014-2015 | 800 | ||
| SNOWMOBILE | arctic cat | ZR 8000 Sno Pro | 2014-2017 | 800 | ||
| SNOWMOBILE | ski doo | 600 SDI (rev chassis) | 2008-2008 | 600 | ||
| SNOWMOBILE | ski doo | 600 SDI (xp chassis) | 2008-2008 | 600 | ||
| SNOWMOBILE | ski doo | Expedition 600 HO E-TEC | 2011-2019 | 600 | ||
| SNOWMOBILE | ski doo | Expedition 600 HO SDI | 2005-2006 | 600 | ||
| SNOWMOBILE | ski doo | Expedition TUV 600 HO SDI REV-XU | 2007-2008 | 600 | ||
| SNOWMOBILE | ski doo | Expedition TUV 600 HO SDI REV-XU | 2009-2010 | 600 | ||
| SNOWMOBILE | ski doo | Formula 700 | 2000-2001 | 700 | ||
| SNOWMOBILE | ski doo | Grand Touring 600R E-TEC | 2019-2019 | 600 | ||
| SNOWMOBILE | ski doo | Grand-Touring LE 600 HO E-TEC | 2010-2010 | 600 | ||
| SNOWMOBILE | ski doo | GSX 600 HO SDI | 2004-2007 | 600 | ||
| SNOWMOBILE | ski doo | GSX LE 600 HO E-TEC | 2009-2015 | 600 | ||
| SNOWMOBILE | ski doo | GSX LTD 600 HO SDI | 2008-2008 | 600 | ||
| SNOWMOBILE | ski doo | GSX LTD Touring 600 HO SDI | 2008-2008 | 600 | ||
| SNOWMOBILE | ski doo | GSX SE 600 HO E-TEC | 2012-2015 | 600 | ||
| SNOWMOBILE | ski doo | GTX 600 HO SDI | 2005-2007 | 600 | ||
| SNOWMOBILE | ski doo | GTX LE 600 HO E-TEC | 2009-2009 | 600 | ||
| SNOWMOBILE | ski doo | Legend 600 HO SDI | 2004-2004 | 600 | ||
| SNOWMOBILE | ski doo | MXZ 600 HO E-TEC | 2009-2018 | 600 | ||
| SNOWMOBILE | ski doo | MXZ 600 HO SDI | 2004-2007 | 600 | ||
| SNOWMOBILE | ski doo | MXZ 600 HO SDI | 2007-2007 | 600 | ||
| SNOWMOBILE | ski doo | MXZ 600 HO SDI | 2008-2008 | 600 | ||
| SNOWMOBILE | ski doo | MXZ 600 RACING | 2019-2019 | 600 | ||
| SNOWMOBILE | ski doo | MXZ 700 | 1999-2000 | 600 | ||
| SNOWMOBILE | ski doo | MXZ X 600 HO SDI | 2008-2008 | 600 | ||
| SNOWMOBILE | ski doo | RENEGADE 600 HO E-TEC | 2010-2018 | 600 | ||
| SNOWMOBILE | ski doo | Skandic SWT 600 HO E-TEC | 2012-2019 | 600 | ||
| SNOWMOBILE | ski doo | Skandic WT 600 HO E-TEC | 2011-2019 | 600 | ||
| SNOWMOBILE | ski doo | Summit 600 HO E-TEC | 2009-2018 | 600 | ||
| SNOWMOBILE | ski doo | Summit 600 HO SDI | 2006-2007 | 600 | ||
| SNOWMOBILE | ski doo | Summit 700 | 1999-2000 | 600 | ||
| SNOWMOBILE | ski doo | Summit Everest 600 HO E-TEC | 2009-2011 | 600 | ||
| SNOWMOBILE | ski doo | Tundra Xtreme 600 HO E-TEC | 2011-2019 | 600 |
extended fitment
Arctic Cat CF 8 10, Arctic Cat CF 8 Sno Pro 10-11, Arctic Cat CFR 1000 09-11, Arctic Cat CFR 8 10-11, Arctic Cat F 800 LXR 12-13, Arctic Cat F 800 Sno Pro 12-13, Arctic Cat F 8 10, Arctic Cat F 8 Sno Pro 10-11, Arctic Cat M 800 12-13, Arctic Cat M 800 Sno Pro 12-13, Arctic Cat M 8000 14-17, Arctic Cat M 8 10-11, Arctic Cat M 8 Sno Pro 10-11, Arctic Cat XF 800 12-17, SKI DOO Expedition 600 HO SDI 05-06, SKI DOO Expedition TUV 600 HO SDI REV-XU 07-08, SKI DOO GSX 600 HO SDI 04-07, SKI DOO GTX 600 HO SDI 05-08, SKI DOO Legend 600 HO SDI 04, SKI DOO MXZ 600 HO SDI 07, SKI DOO MXZ 600 HO SDI 04-07, SKI DOO Summit 600 HO SDI 06-08, SKI DOO Formula 700 00-01, SKI DOO MXZ 700 99-00, SKI DOO Summit 700 99-00, SKI DOO Expedition 600 HO E-TEC 11-19, SKI DOO Expedition TUV 600 HO SDI REV-XU 09-10, SKI DOO Grand Touring 600R E-TEC 19, SKI DOO Grand-Touring LE 600 HO E-TEC 10, SKI DOO GSX LE 600 HO E-TEC 09-15, SKI DOO GSX LTD 600 HO SDI 08, SKI DOO GSX LTD Touring 600 HO SDI 08, SKI DOO GSX SE 600 HO E-TEC 12-15, SKI DOO GTX LE 600 HO E-TEC 09, SKI DOO MXZ 600 HO E-TEC 09-18, SKI DOO MXZ 600 HO SDI 08, SKI DOO MXZ X 600 HO SDI 08, SKI DOO MXZ 600 RACING 19, SKI DOO RENEGADE 600 HO E-TEC 10-18, SKI DOO Skandic SWT 600 HO E-TEC 12-19, SKI DOO Skandic WT 600 HO E-TEC 11-19, SKI DOO Summit 600 HO E-TEC 09-18, SKI DOO Summit Everest 600 HO E-TEC 09-11, SKI DOO Tundra Xtreme 600 HO E-TEC 11-19, SKI DOO 600 SDI (xp chassis) 08, SKI DOO 600 SDI (rev chassis) 08, Arctic Cat Crossfire 800 10-17, Arctic Cat ZR 8000 LTD 16-17








