on my old galant vr4 i had a greddy profec B(amongst other mods). the display would show recent boost. i took the car to a local place that does state inspections, and part of the inspection was a road test. so one of the techs takes the car out, and several minutes go by. he returns, opens the hood, and now all the techs are there looking. he then comes over, hands me the keys, and says, "man, that car is fast". so i get in and leave, and i put it in the show past boost mode, and it shows max boost(21lbs) which i rarely used. after that, whenever i took the car in for state inspection, i would reset the boost way down to like 10