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      12-30-2012, 11:23 PM   #2
CJ421
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Drives: 2017 F30 340i
Join Date: Feb 2011
Location: Philadelphia, PA

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Did you upgrade the charge pipe? It's common the plastic stock one cracks with more than stock boost, possibly explaining the low boost pressure. I can't comment on the revving issues though.
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2017 BMW 340i (F30) - M Sport, Mineral Gray/Coral Red, 6MT; Dinan exhaust
Past: 2011 335i (E92) - M Sport, Le Mans Blue/Black, 6MT