Mercury - JPI Dual Thruster Kit SF2 Control System 98-8M0171474. OverviewThis JPI dual thruster kit is built for inboard boats running two Side Power SF2 thrusters with Mercury's Joystick Piloting for Inboards. It brings the hardware the system needs so the joystick can control both thrusters and the drivetrain as one smooth unit. Once everything is hooked up, slow-speed maneuvering-slides, pivots, tight turns-feels a lot more controlled and less stressful, especially on windy days or when space