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      06-02-2010, 07:28 PM   #7
J08M3
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Drives: 2011 M3 COUPE
Join Date: May 2008
Location: NEW YORK

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So I'm guessing no one actually knows how this thing works? Or those who do don't want to say it...... Anyone know what kind of readings you get from rear O2 sensor with this thing? What happens if you have the deleter installed and go for a readiness test? No one has tried this yet?
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