attwood 9400-7 Marine Boat Hydro-Stabilizer Kit for Outboards and Stern Drive Engines, One Size

Gives outboards and stern drives a performance boost, improving both stability and handling. The hydro-stabilizer outperforms ordinary flat hydrofoils by reducing drag when the hull goes on plane. Installs on a large variety of motor styles and sizes with included stainless steel bolts and lock nuts. Wings constructed of black molded plastic. The hydro-stabilizer quickly puts the boat on plane, and helps pull skiers out of the hole faster. Even at lower RPM, it keeps the boat on plane. The wings provide a smoother, more stable ride and reduce ventilation in turns.