Peace be upon you A spacer for the O2 sensor, a substitute for the catalytic converter. A spacer that fits onto the O2 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 engine light (Check Engine) will turn on. If the engine light (Check Engine) 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 engine light (Check Engine) appearing, these problems occur: 1- Very high fuel consumption 2- Delayed starting 3- Weak torque 4- Shaking, sputtering, and muffling 5- Remote start fails 6- Traction control fails 7- 4WD fails The spacer improves the sensor's reading so that the engine light (Check Engine) turns off and these problems are resolved. The price for the straight one is 70 SAR. And the price for the "L" shape is 110 SAR.