I saw a plug in chip tuner (basically just slots in to the OBD port) and promises better performance, fuel consumption etc, but then I also saw there's a bunch of places online that you can upload your current file to and they send you a tuned one for you to upload.
Any of these any good? I'm in the USA so finding someone here that has experience and or the the kit to tune a Duratorq is basically going to be impossible (the Duratorq's were never used in the states) so would need somthing I can do myself or remotely....?
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