Compatibility: 2000 BMW 323Ci 2.5L 1999-2000 BMW 323i 2.5L 2001-2002 BMW 325Ci 2.5L 2001-2002 BMW 325i 2.5L 2001-2005 BMW 325xi 2.5L 2000 BMW 328Ci 2.8L 1999-2000 BMW 328i 2.8L 2001-2003 BMW 525i 2.5L 1999-2000 BMW 528i 2.8L 1999-2002 BMW Z3 2.5L 1999-2000 BMW Z3 2.8L Q&A: Q:What is Differences Between upstream and downstream O2 Sensor? .
