Good thought. I was wondering about the "noise" at highway speeds. If in fact it is wind noise I would look to the windshield. I had mine replaces twice with poor results (wind noises), the third time I took it to a small windshield shop that was highly recommended. Once they installed it no wind noise.Chiddie said:It seems that a lot of people have leaking windshield seals that cause the noise at highway speed that you speak of.
As pictured above, the gasket side of the filter should be down/towards the engine with the fins up/towards the windscreen. I for one have never paid any attention to which way the arrow points.