TCM mini Cat O2 spacer. This product is to help remove an Check Engine Light for the rear O2 sensor. This spacer, pushes the O2 Sensor further out and away from the exhaust flow. It also has a small catalytic converter inside to help filter the exhaust gases.
They are strictly for off road use only.
We can not guarantee this will prevent a CEL as all cars are different.
Thread Size: M18 x 1.5
Comes with 2 caps to change airflow for adjustment.
