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      01-24-2013, 01:34 PM   #3
THE TECH
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Drives: BPMsport 2012 E92 M3
Join Date: Jun 2011
Location: Kansas

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Benvo can verify but I believe 231E was the one that made the difference for many people. Seeing as that's what you've got, no reason to spend more to get 240E unless, like Mike said, you are wanting some performance software. We include the newest software free with all of our performance tunes.
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