Includes: Sensor Boss / Blind Plug / Copper Washer

Size: M18 x 1.5mm

Tomei Universal O2 Sensor Bung and Plug:

Required For Installing an A/F Gauges

The use of an A/F sensor and gauge is an indispensable tool for engine tuning.
To acquire the A/F reading, an O2 sensor needs to be installed on the exhaust manifold or the front pipe,
along with installation of A/F gauge. This O2 sensor bung is then required in order to installing an O2 sensor on your car.
A bung plug bolt is also included for when the O2 sensor is removed.

We usually ship all orders within 1 day unless there is an issue with the order. In that case, we will contact you to find the best solution.