Reviewed By Matthew B (Ames, IA) Reviewed for a 2004 Ford Mustang —3/10/2015 4:56 AM
I bought the programmer to recalibrate my speedometer. The previous owner swapped gears to 3.73 and didn't bother correcting the issue himself. I researched a few different options for calibrating the speedo and Hypertech's Max Energy Programmmer was the best option. The tuner was very easy to use. The only downside is the soft ware update. Immediatly after unboxing the product it requires about 25 minutes of installation and updating with a PC. I expected plug and play.