Paul and Danny talk about a topic they know a lot about - EFILive, the tuning software used to develop calibrations for the Duramax, Cummins and a variety of gas engines. Both guys spend all day, every day, talking about EFILive because that's the underlying tool used by Calibrated Power Solutions. In this episode, they explore in-depth, what the software does and does not do. They also explain the difference between EFILive and a box tuner and the older method for tuning - an ECM chip.