Filter and jet kit from Bill Oneil at watercraft magic. 626-914-9509. Then maybe a head mod from group k. Thats about it on that ski. I have a 97, without getting into the motor, your really limited. Plus, its huge anyways. Unfortunately its hard to do with that ski. My friend has a 96, rossier head, bills filter and jet kit, and a skat. Pulls 51.0 gps. Mine with nujet prop is pulling 53.9. Everything else is stock on mine.