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      05-09-2012, 12:11 PM   #2
Fun w/N54
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Drives: '11 E92 335is AW/CR/DCT
Join Date: Apr 2011
Location: WI

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Mine stumbles as well between 2300 and 3000 rpm during moderate pedal action. So if on highway would be about right speed. I have 6AT and if I get on it it kick's down then no issues.

Have you done your plugs yet...any codes stored?