2017 Sea-Doo GTX 155, Black & Deep Pewter Satin, 3-Seater, 600 lbs. Capacity, 1503 NA Rotax Engine, S3 Hull, Variable Trim System, Ski Tow Eye, Reboarding Ladder, Electronic iBR, Closed-Loop Cooling System, Ergolock with Stepped Design Seating, Tilt Steering. HIN: YDV05518H617. The Sea-Doo GTX model allows you to sit back and enjoy the ride with features such as cruise control, tilt steering, and a hinged touring seat. With ECO mode, it’s also more fuel-efficient than similar competitive models. And it includes many of our iControl technologies, as well as more power for less coin. Not to mention a completely intuitive experience. And if you want even more power, we offer the GTX 215 model.