Thread: O2 sensor
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Old 10-01-2012, 01:15 AM   #2
Beamer Creamer
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Join Date: Sep 2012
Location: Canada
Posts: 270
My Ride: 2005 bmw m3
Does it have 2 or 4 sets of wires running to exhaust system? Dont just order and change them for nothing? Why u wanna know. Look before and after cats
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