I ran the k&n one once and decided it was a waste of money, I saw no imporvment using it
the k&n is a good filter... but there are a lot of otehr good filters out there for cheaper... i get my ford motorcraft fl1a at walmart for $3.77 each..... hell, the mobil 1 filters are top notch, and are $9.99 .... but k&n wants liek 13 for theirs... no thanks.....