SX9510-80BL Size: 18 - 22 Features: -Smoother and faster acceleration, 40% less bow rise and 35% lower on plane speed. -More top speed and no porpoising or chine walking. -Improved fuel economy by 11%+. -Made in the USA. Country of Manufacture: -United States. Dimensions: -Boat length: 12-16, Application: 40 to 80 hp / 2 or 4 stroke. -Boat length: 15-18+, Application: 60 to 150 hp / 2 or 4 stroke / 4 or 6 cylinder I/O. -Boat length: 18-22, Application: 150 to 240 hp / 2 or 4 stroke / 8 cylinder I/O.