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      12-07-2011, 01:55 AM   #3
pacificcastle
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Drives: 2011 E90 M3, 2011 E70 X5 50
Join Date: Oct 2010
Location: Heart still in Germany but currently in Texas

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Agree with BMRLVR, although I would go with the ESS due to you have the option with the tuner to go back to stock when you bring in your vehicle for service and then you can tune it back. That is one advantage to ESS plus you get updates sent to you via email and you can update it yourself.

Hope this helps
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