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      02-01-2013, 10:12 PM   #113
PeterM
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Drives: bmw 335i
Join Date: Oct 2012
Location: United States

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For the catless downpipe can't we just put a sparkplug non fouler so the O2 is not in-stream of the exhaust and not throw any codes. I used to do this on my vw and worked like a charm.
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2013 EB2 335i 6MT