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      02-14-2013, 06:55 PM   #2
urBan_dK
First Lieutenant
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Drives: 2008 E90 M3
Join Date: Jan 2012
Location: Mill Creek, WA

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Do you have a CEL? Are you using a Delete-R? If these answer to either of these questions is yes, you will have to switch back to your stock midpipe.