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      12-05-2012, 10:06 PM   #75
GIdriver
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Drives: 2012 C63 AMG P31
Join Date: Dec 2010
Location: Somewhere in Time


Posts: 1,341
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Thanks for the update. Maybe I missed it, but did you changed the spark plugs yet?
Another suggestion: dyno the car after the OEM software update, and again after installing an aftermarket tune. Do not do both things together without a dyno in between.