Oxygen Sensor Spacer with Cat

This clever little oxygen sensor spacer has a tiny catalytic converter inside it! Potentially useful for many applications, which might include emissions troubleshooting.

How well this works for your specific purpose depends on a lot of different variables, including sensor location, exhaust heat, and more. Your mileage may vary. This is a universal part and we can’t comment on its suitability for any specific application.

Threads directly into the stock rear oxygen sensor bung, then the oxygen sensor plugs into the spacer. Use care when handling the oxygen sensor — it is fragile and easily damaged.

Fits all late-model cars. Choose from straight or right-angle styles.