Nothing packs as much power into as compact a package as the proven, trusted, electronically fuel injected, supercharged, intercooled (SCIC) Rotax 4-TEC engine platform. And for ’09 it packs more power than ever – up to 510 hp. Smaller than traditional stern drives, it frees up space for other uses, like storage. It also frees you from corrosion worries, even when operating in saltwater, thanks to the Closed-Loop Cooling System (CLCS). Traditional open-loop systems draw in the water around your boat, exposing the engine to salt, gunk, and other possible contaminants. The CLCS uses clean coolant instead, like your car. Plus Sea-Doo Sport Boats are some of the most environmentally-friendly boats on the water today. In fact, the entire Sea-Doo sport boat lineup is CARB 3-STAR certified from the California Air Resource Board for Ultra low emissions.