Description:

H4 2.5L; Upstream. Compatible with or fits: (Note: 2.5i; 2006 - 2011 Subaru Impreza 2.5i 2.5L H4) (Note: 2.5i Premium; 2010 - 2011 Subaru Impreza 2.5i Premium 2.5L H4) (Note: Outback Sport; 2006 - 2011 Subaru Impreza Outback Sport 2.5L H4). Quality Tested - built to a strict level of product standards.. Upstream Oxygen Sensor.