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I got the Magnunson installed and the preliminary tune is pretty good. Some fine tuning needed, I think I need to do some tuning in torque management. If I get on the throttle it will stumble and my fuel mix leans out. I will update as I do some trial and error. Other than the stumbling...

Thank you!

Absolutely Probably a Magnuson, still shopping around a bit. I'm sure I won't have it done until late next year.

Maybe the 2a is needed for a standard transmission. idk why else they would be putting it in the new truck. Thanks for the info, now I need to start prepping my garage, and bank account, for a weekend of wrenching and extra vroom vroom. ?

Does the part number on the PCM mean anything when trying to determine if I have a GPEC5 or GPEC2a PCM? I looked up the part number and mine is the same as the 2020 model. Looking deeper there are 2 different part numbers available for both 2021 and 2022. Thanks