^Which is unfortunate, really. I'm hopeful we will someday get access to a really nice ECU re-flash or replacement which allows datalogging. If we had the ECU manage everything without any skewing from a piggyback, we would be able to run higher boost from both the stock turbos or bigger
aftermarket turbos while still using 91 octane pump gas safely.
Even so, the JB4, for now, seems to be the next best thing. It's fantastic to have datalogging capability on a piggyback unit, and it's pretty dang smart for what it is. Even so, a piggyback is a piggyback, and it will always rely on skewing multiple sensor inputs to trick the ECU into allowing certain parameters go beyond what it thinks is safe... Which still creates potential problems or inefficiencies, such as less than ideal valve timing and ignition timing.