The O2 sensor spacer is designed for use in off-road vehicles and is not intended for on-road use or to bypass emissions systems in violation of local regulations. This device may help simulate the signal of a functioning catalytic converter to the vehicle's ECU in certain off-road applications where emissions controls are not required. It is not a repair for damaged sensors or emissions components. Removal of the catalytic converter may cause the downstream O2 sensor to detect changes in exhaust composition, potentially triggering diagnostic trouble codes such as P0420 or P0430. This product may assist in preventing such codes in specific non-emissions-compliant setups. Features: 1. Precision-threaded design for consistent fitment 2. Constructed from durable metal material, resistant to deformation and corrosion 3. Compatible with most vehicles using M18 x 1.5 O2 sensors 4. High-quality construction for long-term reliability 5. Simple installation with direct mounting Condition: New Type: O2 Sensor Spacer Thread: M18 x 1.5 Size: Approximately 1.85 x 0.98 x 1.18 inches Material: Metal Color: Silver Package Contents: 10 x Oxygen Sensor Spacer Note: The package includes only the items listed above. Other accessories are not included. Due to lighting and display differences, the actual color may vary slightly from the image. Measurement tolerance is +/- 1-3 cm.