Here's the deal: when your car rolled off the assembly line "the man" wouldn't let Ford set it up for maximum performance. Fortunately with a Fusion tuner, you can tell "the man" to get lost and tune your car up for maximum horsepower and torque. With Ford Fusion power programmers and performance tuners you're able to put the excitement back into driving. Depending on the specific unit, your Fusion tuner lets you tweak an incredible variety of performance parameters, such as rev limiters, shift points, shift timing and shift pressure. Drivers report gains as much as 20 or more horsepower.