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ess dme ecu software

  1. E60 M5 and E61 M5 Touring Discussion
    Hi Guys... I'm planning on sending in my DME for the ESS upgrade next week. I know a number of you posted some great reviews, but I just wanted to get an update now that you've been able to put some mileage with the new programming. Please let me know your findings. Any thoughts would be...