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O2 Oxygen 02 Sensor for 2006-2009 Subaru Outback 2.5L Upstream + Downstream 2pcs

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For 06-2009 Subaru Outback 2.5L A/F Ratio O2 02 Oxygen Sensor 2pcs Upper Lower

For 04-05 Subaru Outback 2.5L O2 02 A/F Ratio Oxygen Sensor 2pcs Upstream