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ragingpanda · 11-10-2012, 12:20 AM

Who installed the downpipes? My guess would be that the installer mixed up the black and grey o2 sensors in the downpipes causing the car to run weird.

11-10-2012, 12:20 AM	#2
ragingpanda Lieutenant 7 Rep 516 Posts Drives: 135i Join Date: May 2012 Location: Florida iTrader: (0)	Who installed the downpipes? My guess would be that the installer mixed up the black and grey o2 sensors in the downpipes causing the car to run weird.
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