Not sure which 1999 Ford F-450/550 Air Filters - Custom Fit is right for you? We have over 14143 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"Installed easily. No noticeable fuel or performance increases yet but a new filter is a new filter." —Matthew H from Gainesville, TX bought a K&N Air Filters for a 1999 Ford F-450/550.