No way to beat the black box
There is no way to beat the black box without disabling your airbag system. The black box records the last 5 seconds. It gives a speed read out, percent of throttle, brake pressure applied, as well as speed etc. Originally, only the car manufacturer could decipher the encryption but sometime ago the auto industry gave encryption devices to the insurance industry and then to law enforcement.
I guess you could contest illegal search and seizure and have the evidence thrown out of court as non admissible but then again you could save a 106+ run for the track and not have to worry about it