Details Notes Compatibility About We are pleased to offer our plug and play ECUs which are perfect for those with Simos12 ECUs looking to upgrade to have the greater tuning capabilities offered with Simos18. Alternatively if you wanted a spare ECU to tune while retaining the stock ECU. ECUs are supplied with the immo disabled. Software version can be matched to your existing version in case of replacement ECUs. For upgrade ECUs the ECU will be provided on a widely supported software version. Please note the ECU is supplied with a stock tune with the immo disabled. The immo disabled file will be provided to you when the ECU is dispatched via email. It is very important that this file is used as the base for any tuning. ECUs are supplied already unlocked for use with VW_Flash or Simos Tools. Please supply the long coding and software version of your ECU where possible. 18.1 - All cars fitted with either Simos18.1 or Simos12.1 from factory.
