O2 Sensor Spacer with Mini Catalytic Converter

For vehicles with high flow catalytic converter and vehicles where the catalytic converter has been removed

The spacer is fitted between the exhaust and the rear O2 sensor.
The altered readings of the rear O2 sensor prevent the activation of the check engine light (error code P0420 & P0430).

Made of high quality T304 stainless steel.

Depending on the vehicle, up to 2 pieces are required.

This part is not approved for use on public roads.
Will not work to fix errors caused by defective O2 sensors.