Please check fitment notes & description for accurate information. 2003-2006 Subaru Baja 2.5L 1999-2004 Subaru Forester 2.5L 1999 Subaru Impreza 2.2L 1999-2004 Subaru Impreza 2.5L 1999 Subaru Legacy 2.2L 1999-2004 Subaru Legacy 2.5L 2000-2004 Subaru Outback 2.5L Oxygen Sensor's Location: How do I know the O2 sensor is good or not? Check engine light on A reduction in fuel economy. Your catalytic converter fails unexpectedly Exhaust emissions reach undesirable levels. .
