The most popular outboard hydraulic steering system offering smooth, super"‘efficient No FeedBack Steering designed for today's high performance hulls with single or multiple outboards up to 600 HP combined. SeaStar Steering systems are totally self"‘contained, non"‘power"‘assisted units that make steering a boat a truly enjoyable experience. Their super"‘efficient hydraulic operations produces an effect most people equate with "power steering". Although some dash modifications are required when you upgrade from a mechanical system, there are no pressure vessels or powers units to mount. 4.5 turns lock"‘to"‘lock.