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pbdm4k · 10-29-2007, 04:33 PM

I dont see why this would be a problem if you install these post cat/rear o2 sensor.

so it could be like a free flow cat back.

10-29-2007, 04:33 PM	#5
pbdm4k Lieutenant Colonel 75 Rep 1,689 Posts Drives: 2010 335d Join Date: May 2007 Location: North of the Border iTrader: (3)	I dont see why this would be a problem if you install these post cat/rear o2 sensor. so it could be like a free flow cat back.
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