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      04-13-2013, 03:44 PM   #3
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Drives: 2006 M Roadster
Join Date: Mar 2011
Location: CA

iTrader: (2)

AFAIK 12.3 is roughly the ideal AFR for maximum power, so you usually want it between 12.5 and 13.

You were running a bit rich before, and now a bit lean.

Have you tried resetting adaptations?
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