Give your 650 Polaris that extra snap and horsepower you’ve been looking for. The Stage 1 kit includes a lightweight silencer which provides 7.7 pounds of weight savings, a crisp sound with improved horsepower and performance. It also features an SLP Power Shift™ Clutch kit for better power transfer to the ground. This combination is 2 lengths quicker than stock in a short drag race. No fueling changes required.