O2 Oxygen Sensor For Subaru For Impreza For Legacy For Forester 2.0L 2005-2015 Up Downstream Oxygen Sensor 22690AA891 22641AA480 22690-AA891 22641-AA480(Upstream Downstream)

For Subaru for Impreza for Legacy for Forester 2.0L 2005-2015 Up Downstream Oxygen Sensor 22690AA891 22641AA480 22690-AA891 22641-AA480 Features: The main function of the sensor is to optimize air fuel in the engine,Helps engines run efficiently and improves fuel economy by accurately measuring the oxygen content in exhaust gases Longer Service Life: durability material and crafts, provide a reliable operation and longer service life of this item The function of the oxygen sensor is to monitor the mixture at all times to keep the engine in the best mixture combustion state Oxygen Sensor is designed to improve fuel economy while reducing harmful emissions. Helps the engine run efficiently in air-gas ratio. Improve engine response and performance.