It's well-known that the first three upgrades to a Mustang are a cold-air kit, exhaust, and a tune. Modern-day tuners fill your factory computer with high-performance ideas via the OBD-II port under your dash. Some are designed to deliver more performance, some better gas mileage, and in some cases both.
To see how much an off-the-shelf tune could help our 2008 GT, we ordered Superchips' new Flashpaq programmer, which offers built-in tunes for 87- and 91-octane fuel. Not only does the Flashpaq tune your computer, it will also read the diagnostic codes thrown by the computer. Once you register online and update the programmer, it will also have the ability for data logging.
Our Mustang was nearly stock, with the only install being the Ford Racing 5230-S mufflers, the same mufflers used on FR500S racecars. Ford Racing claims no power gains with the mufflers, but subtract a couple if you like. With the Superchips performance tune installed, we gained 25 hp and 11 lb-ft of torque!
Those numbers are definitely noticeable on the street as we terrorize the neighborhood near the 5.0&SF headquarters. You can really feel the torque increase off the line and the horsepower up top. We have to say that the Flashpaq is definitely worth all the One-jamins you'll spend on it!