The O2 sensor spacer is designed for use in off-road vehicles and is not intended for street-legal vehicles. It may be used during diagnostic testing or in situations where emissions controls are not required. This device does not repair damaged sensors or emission systems. It is engineered to adjust the position of the downstream oxygen sensor to support proper signal interpretation by the vehicle's ECU in specific non-emissions applications. 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 spacer may help simulate expected sensor readings in such cases when used off-road. 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.