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      01-28-2013, 01:04 AM   #1
Twnturbofanatic
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Drives: E92 Black Saphire 335i M Sport
Join Date: Nov 2012
Location: New jersey

iTrader: (2)

Hey guys just bought a 2010 335i and it came with the bmw power pack. Now I know it's a moderate stock tune but my question is if I go jb4 will I notice a big difference since I already have the power pack tune. Also is it a pain to take off when you go in to the dealer for service? Thanks.