Not sure which 1999 Ford F-350 Performance Chips & Programmers are right for you? We have over 7429 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:
"Performance has improves significantly much more power on hills and a lot less down shifting. But I have not noticed any change in gas milage. I Got 11 MPG pulling my 5th wheel
prior to installing and still get 11 MPG." —Paul M from Reedville, VA bought an Edge Evolution Programmer for a 1999 Ford F-350, 7.3L Power Stroke.