Just ordered a new 06 GT automatic to replace my totalled 04 Mach 1,(rear ended at 45), been reading about these Brenspeed sct tuners, question, does this tuner take off the speed limiter? I had a Predator for the Mach, from what ive seen they are not the ticket for the new stangs. My Mach ran 150 top end, what can i expect from the new one after a cai and tuner and exhaust install?