NGK direct-fit oxygen sensor for 2000–2002 Porsche Boxster. Oxygen sensors give continuous closed-loop feedback to the engine control unit to help preserve engine performance, boost fuel efficiency and reduce emissions by regulating the air–fuel ratio and alerting OBDII systems to fuel delivery or catalytic converter issues. The sensor uses an advanced ceramic element with a 3-stage contaminant-resistant plasma-jet and deposit-trap overcoat to help resist element poisoning.
NGK Porsche Boxster 2002-2000 Direct Fit Oxygen Sensor