The high-performance GP Series consists of both normally aspirated and supercharged models offering you all the power you need, and more. These top performance speed machines are for those adrenaline-junkies seeking the ultimate thrill on the water. Yamaha’s top-of-the-line models, the supercharged YGP1800R SVHO and GP1800R HO feature race-inspired design elements offering a new level of nimble handling and agility.