Help about O2 sensor.
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Joined: Nov 2014
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Help about O2 sensor.
We're is a O2 sensor located befor or after cats? Sorry for this dumb question lol bc I'm trying to see if I just get pipes or cats to make my stock exhaust noise to be a bit louder on my g37s coupe rwd
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staaksondeck
Engine, Drivetrain & Forced-Induction
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Mar 14, 2016 11:15 AM