i don't how many jetboat owners there are on this site ,but i'm sure there are a few.
we are making intake fins for jetoutboard engines, most jets that i see have fins on them ,but are made from aluminum and get damaged easily. these are made of uhmw and will take lots impact . they not only protect your unit ,but direct more water into your intake improving performance .
they are available now at jamesriverjets in virginia ,call jim starkey at 1-434-286-4004