i got a K&N drop-in today just for something to do. I grew up with them for the last 15 years, so its just a logical choice for me. (When I'm not interested in any larger intake system). I am very interested on this "seal leak" someone mentioned about the K&N. I will be checking sometime later to see if the K&N really is letting dirt past the filter into the top cover. I have never experienced an issue like that with K&N.