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      07-30-2011, 05:10 PM   #14
Drives: 2009 e90 AW/BB lotsa Dinan
Join Date: Jan 2009
Location: new jersey

Posts: 447
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You want the $799 Engine Performance Software. Other one is for cars with X-pipe. Should mention there can be some minor surge due to cold DCT clutch chatter but only as you pull away from a stop. this is separate from software. Something that helped me learn to modulate throttle smoothly was to drive it in Super Sport mode for a few days- then regular sport mode was easy (re-flashed my brain!).
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