Temperature resistant O2 sensor construction provides durability, resists oxidation and temperatures, delivers quicker response times, and ensures longterm stable performance. Helps improve engine performance and fuel efficiency by reducing CO and other harmful emissions, which supports extended life of the catalytic converter. 45 Degree O2 Oxygen Sensor Adapter Aluminum Extender Spacer for CEL Eliminator with Catalytic Converter P0420 P0430. Threads manufactured with a dedicated tool for accuracy and repeatability; strength and durable. Use scenarios Use in CEL eliminator setups for vehicles with catalytic converter codes P0420 or P0430 to achieve proper sensor positioning. Ideal for installations in tight or irregular exhaust layouts where a 45degree orientation improves sensor fit and clearance. Suitable for temperature exhaust environments requiring a durable, reliable spacer and alignment solution to maintain sensor performance.