Green Diesel Tuning Update

[Red_5]

Wouldn't the better idea be to buy a spare ECU and have GDE tune it and keep your stock ECU for dealer visits?

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[Mac]

Wouldn't the better idea be to buy a spare ECU and have GDE tune it and keep your stock ECU for dealer visits?

Just a guess but they probably need your stock ECU as it is “married” to you VIN and who knows what else that they need to have in the ECU