I've always known this filter as a Pollen filter, but I can't come up with anything when I do a search. Does the 99-04 Mustangs have this filter? If so where is it, or what is the part number to change it? My other cars have it, I am wondering if the stangs have it, because when I use the heater-a/c it doesnt' smell all that good, and its very humid when I use the heater.