For 2006-2009 Subaru Legacy Outback 2.5L Non-Turbo Up&Down 2PCS Oxygen O2 Sensor

2006-2011 Subaru Impreza Outback Sport 2.5L H4 Non-Turbo;. 2006-2009 Subaru Outback 2.5L H4 Non-Turbo ;. 234-4445 (4-wire oxygen sensor): Downstream 1X. 2006-2009 Subaru Legacy 2.5L H4 Non-Turbo ;. 2006-2010 Subaru Forester 2.5L H4 Non-Turbo ;.