Ok so I am considering getting a K&N air filter for my blue buddy (1984 GL Wagon EA81. 165,262 mi), but im really torn at this point. I have heard wonderful things about K&N. I have read up quite a bit about them and I really would like one. But before I do I thought I would check with the magical subaru farries which dwell within this form . Anyone ever run or currently run a K&N? Any noticeable gains in performance (mpg, power, acceleration, filtration). The main thing stopping me right now is the rather steep $65 for the filter. In reality, the thing would pay itself off in no time because you never need to throw it away, but I wanted to make extra, extra, extra, sure that it is worth laying down sixty five smackers for. Thoughts? Experiences?