Follow along and watch as Michael Schimmack, Superchips' lead Ford calibrator, uses the same Cortex to tune an '08 Ford F-250 6.4L diesel and a Shelby Mustang GT500, both in less than half an hour. The Ford unit (P/N 1950) covers '05-'08 Mustangs, '99-'08 Ford SUVs,'99-'08 gas-powered Super Dutys, and '99-'08 diesel-powered Super Dutys and Excursions.
 Next, we strapped an '07 Shelby...  Next, we strapped an '07 Shelby Mustang GT 500 with a 5.4L supercharged V-8 onto the Superchips dyno to establish a baseline. The motor was stock except for a smaller, underdrive pulley on the blower. |  At 11:52 a.m., the Superchips...  At 11:52 a.m., the Superchips monitor showed 425 hp and 438 lb-ft of torque. |  We followed the same procedure...  We followed the same procedure for the Mustang, plugging the Cortex programmer into the OBD-II port and saving the stock file so that the car could be returned to factory specs. |
 The Cortex allowed changes...  The Cortex allowed changes to the rev limiter, speed limiter, and fan temperature activation point. It also asked us to identify the rearend gears in the car. |  Once the questions were answered,...  Once the questions were answered, we simply clicked "Yes" to install the upgrade. |  At 12:03 p.m., the Superchips...  At 12:03 p.m., the Superchips dyno indicated an increase of 64 hp (489 hp versus 425 hp) and another 43 lb-ft of torque (481 lb-ft instead of 438 lb-ft). Not bad for 11 minutes of work. Of course, we don't want to mislead you. Reprogramming can recover significant hidden horsepower in the supercharged Shelbys, but not all Mustangs will see this level of improvement. |