My experience with the Pro Cal Tool was when I installed the 2018-2021 Mustang GT Calibration W/Cold Air Intake and Throttle Body on my 2019 GT PP2. I have used an NGuage in the past and liked the real-time data displayed. I found that the ProCal Tool does not have as robust features as the NGuage, it is limiting on the data that it did display and it is just too damn big for any permanent mount in comparison.