Peace be upon you. An adapter for the oxygen sensor, an alternative to the catalytic converter. An adapter that fits onto the oxygen sensor. It improves the sensor's reading as if the converter is present. In case of damage, removal, or modification of the catalytic converter, the Check Engine light will turn on. If the Check Engine light appears, perform a computer scan and confirm the error code you have: P0420,P0421,P0422,P0423,P0424 P0430,P0431,P0432,P0433,P0434 And due to the Check Engine light appearing, these problems occur: 1- Very high fuel consumption 2- Delayed starting 3- Weak acceleration 4- Shaking, sputtering, and muffling 5- Remote start will not work 6- Traction control will not work 7- 4WD will not work The adapter improves the sensor's reading so that the Check Engine light turns off and these problems are resolved. The price for the straight adapter is 70 SAR. And the price for the "L" shaped adapter is 110 SAR.