Compatibility: 2001 Subaru Outback 2.5L Q&A: Q:What is Differences Between upstream and downstream O2 Sensor? .
?2PCS Upstream & Downstream Fits for 98-2000 Toyota Sienna 3.0L O2 Oxygen Sensor
2PCS Upstream & Downstream Fits for 2004-2005 BMW X3 3.0L O2 02 Oxygen Sensor
2PCS Downstream Fits 2003-2005 BMW 330i Z4 3.0L 02 Oxygen O2 Sensor
2X Oxygen Sensor O2 02 Upstream+Downstream Fits for 2006-07 Chevy Impala 3.9L
?2X Upstream & Downstream Fits for 98-2000 Toyota Sienna 3.0L O2 Oxygen Sensor
2pcs NEW Fits For BMW E90 E91 E92 335i Inlet & Outlet Engine Oil Cooler Lines
