I've always thought you had to buy a predator or something like it to reprogram the ecm. I don't know if this guy yesterday was blowing smoke but he told me that if you have the key on without running the motor and press the traction control button a number of times it would reset the computer to a "sport" mode giving me more power in my 12 GT..... I grew up working on carbs and distributors so can someone please update me ....thanks