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View Full Version : Factory O2 Sensor


Ryze268
09-20-2014, 03:28 PM
Hey guys,

I was thinking about straight piping my exhaust however I noticed that it had an O2 sensor just before the cat. I was wondering how essential this is to the operation of the car. Could I run the car without it? Would the car malfunction?

I drive a -00 JDM Vitz