well I go between motorcraft and k & N. This last one was with motorcraft, but when I changed I put on a K & N. I try to use K & N all the time, but it isn't that easy to find.

99 Mystique LS T-Red ATX Duratec Mods: Hella stereo Mods K & N air filter w/intake pipe www.sounddomain.com/id/jongordo8