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      06-05-2013, 07:21 PM   #24
rentonrider
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Drives: E92 M3
Join Date: Sep 2011
Location: Renton, WA

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2011 BMW M3  [3.50]
Well that depends on which frm you have. If build date is Pre 03/2007 you have frm1, 3/2007 to ??/2010 is frm2 and after that is frm3. Frm3 voltage change is easy. Frm1 and 2 aren't as easy. What do you have?