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The NGK direct-fit oxygen sensor for Subaru Impreza (1999–2001) provides continuous closed-loop air–fuel feedback to the ECU to help preserve engine performance, improve fuel economy and reduce emissions. Manufactured by NTK, the sensor uses precise ceramic element control and a 3-stage contaminant-resistant plasma jet with a deposit-trap overcoat to guard against element poisoning and improve resistance to failure in OE applications.
NGK Subaru Impreza 2001-1999 Direct Fit Oxygen Sensor
