⚠️ Catalyst / 858 Owners: The Arctic Cat 858 requires its own specific HDMI Data Cable and External Power Cable

Water Proof

Enhanced Durability: The wastegate features a heavy-duty inner diaphragm which significantly reduces the common failure rates associated with stock units

**This kit requires your head to be sent to us for core charge** You can purchase head outright for additional cost

RMK KHAOS Patriot Boost 850 MATRYX SLASH w/165"x2

Big Bore 900 Kit / Patriot 850 - SKU: 09-311 / Category_Default Category/SLED/Arctic Cat/8000 C-Tec '18-Up ⚠️ Catalyst / 858 Owners:Patriot 900 Big Bore Top End Kit (Fits Polaris Patriot 850 Models) Transform your Polaris Patriot 850 into a high horsepower monster. This 900cc Big Bore Kit delivers insane arm stretching power, massive mid range pull, and the kind of torque that makes it hard to keep your skis on the ground. Performance & Features Massive Power Output: Realize 195 to 215 Horsepower (depending on your chosen exhaust configuration and tuning). Premium Components: