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      01-22-2013, 07:36 PM   #28
xnfsx
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Drives: E90 M3 2011.75
Join Date: Jan 2012
Location: NY

iTrader: (3)

can you just weld a hi flow cat on your midpipe and move the 2nd o2 sensor back to that cat?,

the other method, would securing the o2 work? I need an inspection in a week. I need to find anyway possible to get this to work!