Thread: N55 JB Stage 1 Question...
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      10-07-2012, 07:37 PM   #6
Swerd430
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Drives: 2016 F30 340XI M Sport
Join Date: Feb 2011
Location: CT

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2019 BMW/X3 M40i  [0.00]
I run +5 with 93. The only other thing I have done is a drop in K&N. No problems at all. My buddy works at the dealer and I never have any codes. Happy tuning.
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