Oxygen Sensor Extender

Why Do You Need An O2 Sensor Extender

The theory behind the O2 sensor extender is that if you move the O2 sensor back out of the exhaust stream a little bit it will cool it off a little. If the O2 sensor gets cooler then it tells the computer to lean out the fuel. I have never tried one so I honestly don’t know how much of a difference that it makes.

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