Watercraft 2 Person 5205 PSN . And new for the RXP this year is a 155 horsepower engine option. There's simply no letting up when a PWC handles like this. It's still the most powerful engine in the industry and has yet to get beat in the Musclecraft Shootout. 2007 Sea-Doo RXP (215 hp) nice fast ski Suddenly your shirt sleeves are too short. the 215 horsepower supercharged intercooled engine is back in all its arm-stretching glory for 2007. Either way you'll be digging into turns and beating your friends across the lake with no mercy...