To help fine-tune the performance of its V-8 425 hp XTO Offshore outboard, Yamaha has added 18-, 20- and 22-pitch three-blade props (in 16 1/8-, 16 3/8- and 16 5/8-inch diameters). Designed to harness the torque potential of the XTO, these large-diameter props feature a specially designed blade surface to move today’s big offshore center-console boats. The props work as part of a system to produce thrust in both forward and reverse. In fact, the outboard and prop together can produce up to 300 percent more reverse thrust than Yamaha’s previous V-8 engine, the F350. The props will be priced at the dealer level.