For 2007 Indmar's Saltwater Specific 8.1L HO SS inboard engine now features Indmar's ETC system (Electronic throttle and cruise) now standard. The Indmar developed system allows the helm throttle control to electronically connect to the engine's ECM. Throttle response is quick and smooth. The Electronic Throttle Control with Cruise feature is a bonus for everyone from cruising families to fishermen, wakeboarders to waterskiers.

The Indmar 8.1L HO SS is a multi-port EFI inboard engine marinized specifically for saltwater applications, such as bay runabouts, small cruisers, sportfish and workboats. It has huge low and mid-range torque capabilities. The 9.1:1 high-compression Vortec heads with their straight-flowing matched port design help the engine run both smoother and cleaner while delivering big-time power. The Vortec heads produce more usable power from every fuel charge.