Forza O2 Sensor Spacer

O2 sensor extender with adjustable orifices.  Four different size orifices to vary the exhaust gas flow to the rear O2 sensor.  Includes a copper compression washer.

The snap ring pliers in the photos are for illustrative purposes only.
They are not included.

The O2 extender is used to move the rear oxygen sensor outside of the exhaust stream, which can improve the accuracy of the oxygen sensor’s readings. The most common use is to place the sensor into a pocket of “dead gas” which can eliminate or reduce the occurrence of the check engine light if the sensor is detecting faults with the catalytic converter(s).

Note: The use of this device may not be legal for road use as it may jeopardized the integrity of the car’s emissions system.