Not sure which 1991 Ford F-150 Air Intake Systems are right for you? We have over 20796 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:
"This product has already given excellent performance. I have successfully increased the number of miles I get per gallon." —Larry R from San Antonio, TX bought a K&N 57 Series FIPK Air Intake (Fuel Injection Performance Kit) for a 1991 Ford F-150, 5.0L V8.