2pcs for 1999 Subaru Legacy 2.5L Upstream Downstream Oxygen Sensor O2 02

02 Oxygen O2 Sensor for 1999 Subaru Legacy 2.2L 2.5L Upstream Downstream 2pcs

2pcs for 1999 Subaru Forester 2.5L Upstream Downstream Oxygen Sensor O2 02

2X for 1999 Subaru Legacy 2.5L Upstream Downstream Oxygen Sensor O2

?Downstream for 1996-1998 Subaru Legacy 2.2L 2.5L o2 02 Oxygen Sensor Post Cat

2pcs Upstream&Downstream for 1999 Subaru Legacy 2.2L o2 02 Oxygen Sensor

Oxygen o2 02 Sensor 2pcs for 1999 Subaru Legacy 2.2L 2.5L Upstream+Downstream

?2X Upstream & Downstream O2 02 Oxygen Sensor for 1995-1997 Subaru Impreza 2.2L