From my jet skiing days it definately does make a difference if you can get colder, drier air to the intake. However, on the water a "cold air intake" could very quickly become a "cold water intake" and that would be very very very bad on a 4 stroke boat motor. I hydraulic-ed a cylinder on a Toyota truck of mine years ago and it was not pretty. I know that Mastercraft went to the K&N style filter on the X-star shortly after 1999. I have the standard style flame arrestor with slatted strips of metal on mine. Those strips also "straighten and channel incoming air" just like the K&N and I doubt the K&N will flow more air. The only thing I can see is that it might be a better filter, but there is not really the dust and dirt out on the lake like a car or motorcycle has. In short..."you just need something to keep the bees out" as an old drag bike guy once told me. P.S. Also, the "Vornado" is a piece of junk.
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