Quote:
Originally Posted by MJDBMW
If coming from another flash tune, do we need to go back to stock first before flashing to stage 1? Also, if we flash to your tune after having used another, can we purchase the EEPROM option and will it work as indicated?
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You do not have to, but we recommend that you do for sake of simplicity.
EEPROM backup saves the latest/current eeprom of your vehicle. If your previous tuner did not do a full backup of your eeprom after initial flash and before you want on a drive, then there is no way for us to give you EEPROM with stock data for your car.