GSX® Sport 500SSBehave. You’re in the presence of snowmobiling royalty.You simply won't find a more refined sled than the 2008 GSX®. Built on the revolutionary new REV-XP platform, it is the ultimate culmination of performance and luxury, and its features prove it. REV-XP means the re-engineered GSX is up to 130 pounds lighter than the competition, translating to better responsiveness and less fatigue after long rides. Superlative performance comes from its 151 horsepower 800R Power T.E.K. engine. And the GSX not only seats the rider - whether one-up or two-up - higher for more optimal performance, but also adds eight inches of legroom for comfort. Additional features include our unbelievable new suspension system, completely redesigned driveline, and just about any other improvement you could dream of. If you're looking for the best of the best, look no further.