O2 Oxygen Sensor Driver or Passenger Side DOWNSTREAM Right Left Left/Right

O2 Oxygen Sensor Driver or Passenger Side UPSTREAM Right Left Driver/Passenger

O2 Oxygen Sensor Front Driver or Passenger Side DOWNSTREAM for VW Right Left

O2 Oxygen Sensor Driver or Passenger Side UPSTREAM Right Left Driver/Passenger

O2 Oxygen Sensor Driver or Passenger Side Downstream & Upstream Right Left

O2 Oxygen Sensor Driver or Passenger Side UPSTREAM Right Left Driver/Passenger

O2 Oxygen Sensor Downstream & Upstream for Saab 9-3X 9-3 Porsche 911 2002-2005

O2 Oxygen Sensor Left/Right Downstream & Upstream Driver or Passenger Side