Stop Intake Boot Delamination Failure For Good. Ski-Doo 800R Riders can now choose between Full Valve and Half Valve designs. PRODUCT INTRODUCTION: For 2013 Boyesen Engineering would like to introduce an all-new Full Valve RC2 Series Rage Cage, designed to increase overall horsepower and throttle response in 2008 – 2013 Ski-Doo 800R sleds. Boyesen’s new
Bringing Race-day Tech to All Day Adventure. RC2 System integration yields Horsepower Gains for the popular Ski-Doo E-Tec machine.