Precise steering control for high-speed outboard boats. SeaStar PRO outboard steering systems are the choice for single-engine outboard boats, like bass, flats, combo race/ski, and other performance boats with speeds above 65 mph. This Pro Hydraulic Steering Kit is recommended for single non-power-assisted outboards up to 300 HP. The easy-to-install Sea Star PRO kit is built using the same components used in factory boat building. Kit can be used with jackplates (allow enough hose length for full steering motion and no interference during trim and tilt) and performance props. Compact helm has a 4-7/16" footprint and requires only a 3" cutout. Match the helm with Kevlar reinforced HO57XX hoses. Meets ABYC standards and NMMA requirements. Includes a 2.0 PRO helm (HH5770), semi-universal front mount cylinder (HC5345-3), two quarts of oil, and an installation guide. Two-year warranty.