... I called Ford Racing about this tuner, and he said it shortens your powertrain warranty to 3/36 from 5/60. I asked several times, and it was very clear.
... the Track Key/Track Cal tune ... replaces the 5 years / 60,000 miles with the 3 years / 36,000 miles offered by Ford Racing.
Good to know.
Nothing that could even remotely void/reduce my warranty will ever touch my car.