Thread: N54 downpipes
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      01-04-2013, 02:09 PM   #9
Tee-Dub
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Drives: 2008 135i
Join Date: May 2009
Location: Vancouver, WA

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Some states here in the US just use the OBDII port for testing. In this instance a DP fix device will get you by. The sniffer test though is a no go for catless anything.