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BOOSTPOWER USA specializes in all the necessary marine sterndrive & transmission hardware to apply the horsepower & torque to the water. BOOSTPOWER specializes in custom transmission and outdrive assembly & repair. We are a Mercury Racing and Volvo high performance drive specialist. We perform upgrades, gear swaps, lower unit related upgrades all in house. We service and repair speedmaster series drives along with several other niche type units. BOOSTPOWER’s years of dedication to technology along with our continuous building, dyno testing, and gearbox testing assures you of a winning reliable combination right from the start.