Portable Stainless Steel Adapter Filter Oxygen O2 Sensor Durable Convenient 23x12x3 Universal Adapter Universal Practical Item specifics Condition:New Manufacturer Part Number:234-9015, 234-4706 Interchange Part Number: 234-9015, 234-4706 Item name::Air Fuel Ratio OxygenSensor Location:Upstream & Downstream Direct Fit-In Replacement Wires: 4 Check Compatibility Table for Accurate Information For reference only. Please send us an message if you have any doubts on fitment! Suit for: YearMakeModelTrim EngineNote 2003SubaruForesterX - 2.5L 2003SubaruForesterXS - 2.5L 2004SubaruForesterX - 2.5LNon-Turbo 2004SubaruForesterXS - 2.5LNon-Turbo 2004SubaruForesterXT - 2.5LNon-Turbo 2003SubaruImprezaOutback - 2.5L 2003SubaruImprezaRS - 2.5L 2003SubaruImprezaTS - 2.5L 2004SubaruImprezaOutback - 2.5LNon-Turbo 2004SubaruImprezaRS - 2.5LNon-Turbo 2004SubaruImprezaTS - 2.5LNon-Turbo 2004SubaruImprezaWRX STI - 2.5LNon-Turbo The Compatibility Is Just For Reference. Please Compare With Your One Before Purchasing! Specifications: 2Pcs Air Fuel Ratio Oxygen Sensor Up And Downstream For 2003 2004 Subaru Forester 2.5L 234-9015 234-4706 Package Included: 1* oxygen sensor 234-9015 1* oxygen sensor 234-4706 Notes: Thanks for your coming. To satisfy, please check fitment notes, fictures and interchange part numberfor accurate information, and pay more attention to confirm the connector of this item is whether matched with your car before purchase. Have a happy shopping.