Do you want to make your X Sea Doo run faster? R&D has the solution for you. Simply install nothing more than a drop nozzle, intake grate, sponsons and the X Power Plenum filter (the cylindrical element filter for the intake box that is mounted on top of the OEM fuel tank). Bill Chapin chief engineer and world known tuner of R&D assures you that the X craft will reach the top speed of 73mph.