Diablosport 8100 Intune I3 Handheld Tuner for Ford Diesel Trucks1999 2010 Ford Super Duty Power Stroke Diesel There is nothing like a diesel when it comes to making real power and the i3 programmer will become your trucks perfect companion. The i3 programmers diesel options let you go from mile to extreme. There is a setting for towing, fuel economy, and high performance all tailored to what you need out of your tuner. Using the i3, you can expect maximum power gains of 80+ horsepower, and fuel economy gains of 2