The largest of the Kawasaki range, the STX introduced in 2000 as a two-stroke and then in later models fitted with the 12F and 15F four-stroke engines these boats really benefit from an efficient intake grate to properly load the pump and get the best from your Kawi. Performance benefits include: - Better hook up in all conditions - No top speed loss - Better pump loading in rough water - Holds the boat on the water giving better control - Better cornering because the Worx grate has two rails running the full length that hang down 12mm below the pump cavity which stops the boat sliding out