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      05-30-2012, 08:12 AM   #16
davidkotok
First Lieutenant
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Drives: e92 335i
Join Date: Jun 2010
Location: ny/dc

iTrader: (3)

ARE THESE AUTOMATIC TRANSMISSIONS?? if so the ecu probably needs to relearn your driving. theres no way you are experiencing a 50% power loss in a n/a engine after a battery swap...