Fit Vehicles: 2006 Saab 9-2X 2.5L 2006-2011 Subaru Impreza 2.5L 2006-2011 Subaru Legacy 2.5L 2006-2009 Subaru Outback 2.5L Features: Extensively Tested During Manufacture to Guarantee Quality and Reliability Supplied With a Factory-Fitted Connector for Easy Installation Precision manufactured with a sensing element incorporating premier technical ceramics Where are my oxygen sensors located? Diagnostic Trouble Codes (DTC) .