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No thread lock needed
If you have a 2016-Up model with ELECTRIC START please read: The battery box design changed for 2016 which will not allow the Full Velocity muffler to fit down into the sled properly
VEHICLE TUNE LEVEL OCTANE REAR WHEEL HP EXHAUST CLUTCHING X3 Stock 91 146
larger turbos
SR10R SR Viper RTX 2018
Big Bore 900 Kit / Patriot 850 - SKU: 09-311 / Category_Default Category/SLED/Ski-Doo/GEN4 850 E-Tec No thread lock neededPatriot 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: