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      01-12-2013, 06:31 PM   #2
smoked
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Drives: 335i Touring
Join Date: Aug 2011
Location: United Kingdom

iTrader: (2)

not sure about an m3 but on a non m the sensors are all on the primary, don't see y the m3 would be different.

my 335 passes an mot with no primary cats.... so don't see why not