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      07-29-2009, 06:21 PM   #14
David 12
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Drives: 2014 M5 BSM
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Legitimate question about used tunes - Rev I, while still functional cannot be updated with the latest Rev II features. If you want a Procede, I would highly suggest the Rev II to save the expense of the BT tool.


You can't go wrong with the JB3 and then update to the latest and greatest chip at a very minimal cost.