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      11-21-2012, 08:53 PM   #12
MajHobbyShop
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Drives: 2011 E90 M3
Join Date: Jan 2011
Location: Saddle Brook, NJ

iTrader: (2)

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if I already have a Tune like Stage2 Dinan. Can this tune improve it even further.

From there dinan site with there stage2 tune and off road xpipe with there high flow mufflers I'm only getting 25 or so more HP.