Thread: How to make my car go faster.
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      07-06-2017, 11:04 AM   #10
AmooManiak
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Drives: 21 X5 M50i -> M2C -> 21 M5C
Join Date: Aug 2016
Location: Illinois

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It depends on your car. Early models need A. I believe 2011 need the A and 2012 and above need version B. mike@x-ph.com should be able tell you exactly which one. I think they even sell them.
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