Gauges would be the best option to confirm settings however you can check your GEMs control settings.I have a 2014 mpi viper. I was wondering how I could pressurize the system in the garage to check for boost leaks. Also is there a way To check and see where my boost is set. I don’t trust the previous owner/ have read mpi is all over the board. I don’t have the budget for gauges. Thanks guys