Feel free, everyone, to call me Gary. (Or anything else you'd like.) When I made the hardware changes and installed the new tune my power started coming on higher in the RPM range as you surmise. Auto trans shifts worse. Surging is much, much better but not 100% gone. No word back from Magnuson. Does anyone know what manufacturer of our transmission control unit in the PCM? I need that info for Aringtron Performance and they may be able to help us remotely.
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