Not sure which 2003 Ford F-350 Power Programmers & Performance Tuners are right for you? We have over 5642 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:
"I programmed my pickup. Lots more power shifts better. Don't know about the fuel mileage yet. One thing that has happened my check engine light has been coming on have to go to Ford and see why I GOT THE 7.3 diesel" —Joe W from Lebanon, OR bought a Superchips Cortex Programmer for a 2003 Ford F-350, 7.3L Power Stroke.
"I LIKE THE INSTALATION. WAS FAIRLY EASY AND SEEMED TO MAKE A DIFFERENCE INSTANTLY. MUCH FIRMER SHIFTS AND THE INSTRUMENTATION IS A GREAT FEATURE." —Jim L from Chelsea, ME bought an Edge Evolution Programmer for a 2003 Ford F-350, 7.3L Power Stroke.
"Once I got most of the bugs out of the Ford 6.0L, the Superchip programmer gave me a lot more power. I am still trying to work out the fuel mileage, but there appears to an increase." —Eric M from Katy, TX bought a Superchips Flashpaq Tuner for a 2003 Ford F-350, 6.0L Power Stroke.
"have alittle trouble getting it to the right settings. The fuel mileage runs up and down at times and goes to 99 is it supposed to be that unstable? It does give a great deal of power on performance." —Karen G from Cameron, TX bought a Bully Dog Triple Dog GT Tuner (49-State Legal) for a 2003 Ford F-350, 7.3L Power Stroke.
"Have noticed significant horsepower gains in the 1st power setting. Unit looks like it might have come from the Ford factory sitting on my dash. It would have been nice however, if the ads told me that an exhaust modification should be made in order to use the two top settings." —Frank D from Brookings, OR bought an Edge Evolution Programmer for a 2003 Ford F-350, 7.3L Power Stroke.
"My Diablo Sport Predator Tuner was shipped to me super fast from Auto Anything! It is easy to use and took very little time to hook up and download. I haven't ran but about one tank of gas on the performance setting so I'm not sure about mileage but I did feel an increase in power." —Michael R from Haysville, KS bought a DiabloSport PC Interface - USB Cable Kit for a 2003 Ford F-350.
"I think that the hypertech max energy was easy to install it looks great and the power is amazing. I will definitely recommend it to my friends." —William P from Ranger, GA bought a Hypertech Max Energy Programmer for a 2003 Ford F-350.