For 2012, Boyesen has released their new Rage Cage RC2 Series Reed System. This updated version of the popular Rage Cage now features a sophisticated array of performance attributes designed to provide peak horsepower gains, durability, and model-specific performance for each make/model/year sled.
What makes the Boyesen reed cage design special? It’s the only performance system with aerodynamic internal surfacing – Boyesen calls this “Aero Optimized Internal Surfacing”. A precision surfacing treatment on the interior of the cage eliminates all hard edges that interrupt with the delivery of air and fuel. Because internal air turbulence is virtually non-existent, the proper air/fuel control is optimized. This attention to the specific air and fuel requirements of each sled gives the RC2 Series Rage Cages the ability to reach consistent peak horsepower gains, optimizing power delivery for each specific application. This is not a one-size-fits-all design.
The RC2 Series Rage Cage now features category-leading toughening additives to increase reed petal lifespan by resisting breakdown from damaging agents found in fuel. In addition to their proprietary T2 Epoxy, the Rage Cage features rubber coated reed petals to ensure a long-lasting seal between the petals and the intake tract. You will enjoy the durability of the Rage Cage season after season.
Another unique feature is the model-specific variable-tension reed petals using X Cross Dual Carbon. The Rage Cage’s multi-staged reed petal stacks feature carbon material interwoven into tension combinations that maximize power delivery and peak horsepower. Boyesen engineers specifically tune the carbon matrix tension using a proprietary weave formula that is tested and optimized for each model sled. Call it a “carbon sandwich, with the carbon reeds sandwiched in-between two layers of pre-loaded reeds for a calculated response.
Why three reed layers? The reed petals in modern snowmobile 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 “MS PLUS Optimization” uses multi-staged reed petals to distribute the engine’s pulse forces over more surface area. By using a multiple reed petal stack, it is possible to achieve peak horsepower and durability. 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 RPMs. The stiffer, bottom petal is ported to provide maximum flow and horsepower at higher RPMs.
The dual-stage design also allows you to replace your stock reed stop with a Rev-Plate which permits the petals to open freely and function efficiently.
Multi-stage reeds work in unison to perform efficiently throughout the entire powerband. The difference in stiffness between the top petal and the bottom petal 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.
We’ve never been disappointed when we install a set of Boyesen Rage Cages into one of our sleds. You notice and feel the difference, and they last. They’re sold through many snowmobile dealers and distributors. To check applications visit
To get all of the great articles and content from SnowTech Magazine you must be a subscriber to the print version. You can subscribe here. Or call us at 320-763-5411.