For comedic value AMS decided to use a Nissan Sentra. They set a weak baseline on the Mustang. Then a set of "upgrades" is claimed and some audio is changed and suddenly the Mustang reads out 410 at the wheels and 360 pound-feet of torque at the wheels. For the next run AMS states the motor is built, more boost, and they use an F1 or Indy soundtrack (nice touch guys!) while filming the stock engine bay.
The result? 660 wheel horsepower. The exact same car set very different results simply by manipulating the software. From 160 wheel to 660 wheel by pressing a few buttons? Yep.
The drag strip can not lie like this. It can be leveraged with good weather in certain locations, sure, but it won't blatantly lie. For those who say Mustang dynos always read low, that is not always the case depending on how the dyno is setup. Take those dyno numbers with a grain of salt.