Zipwake Series S, the world?s first inexpensive dynamic trim-control system, incorporates a state-of-the-art family of durable, fast-acting interceptors. The system is fully automatic. It significantly enhances the boat?s performance, fuel economy, comfort and safety when accelerating, turning or running in a seaway. A kit box includes all parts needed to install a Dynamic Trim Control System with one pair of fast-acting straight interceptors (2x interceptors with 3m cable and cable covers, 1 distribution unit with 4m power cable, 1 control panel with 7m standard cable, and 1 extension cable). Any base installation can be expanded with up to two extra pairs of Series-S interceptors. Thus allowing a total of six interceptors without any need for additional connectors or power supply.