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      11-13-2012, 06:45 PM   #7
slostjoe
NEWBICON
 
Drives: E92 335i
Join Date: Jul 2012
Location: Springfield, MO

Posts: 301
iTrader: (6)

Mine only started doing this one I installed my catless downpipes. I have heard this on many other N54's stock and modified. Whats the big deal?
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