MPVI4 CreditsThe HP Tuners MPVI4 Credits are required to license your ECM and TCM before flashing any custom calibration through the MPVI4 interface. Each vehicle platform uses a specific number of credits, and once licensed, the ECM or TCM can be tuned, reflashed, or updated without buying additional credits for that module. Credits apply across a wide range of diesel and gas platforms, including GM Duramax, Ford Powerstroke, Ram Cummins, and many modern Global B
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