I just found one of their old units in my garage ( long overdue for cleaning ) most likely plan on running it a little on the V to see intake temps, etc etc. Its a great little peice that plugs in your OBDII port and monitors a slew of things from speed, g's, even stores 20seconds prior to an accident. You can have it alarm or not if it breaks your set thresholds etc. Figured some of you could really use something like this when dealing with shady type dealerships etc. Make sure they're not breaking the sound barrier on those " test drive " moments