My dealer installed my post filter when they assembled it. So I didn't get to see what it looked like before they installed it. But I did check it and it was extremely over-oiled. To the point that it pooled up about 1/2 inch in the bottom of the airbox and actually sucked into the intake Venturi. I cleaned it all up and put it back in with the proper amount of oil on it and then rode it. Didn't seem to notice much of a difference but at least I know I am not going to be sucking in filter oil into my intake!