BMW 325Ci 2006-2003, 325i 2005-2003, 330Ci 2006-2003, 330i 2005-2003, X3 2006-2004, Z4 2005-2003; Mass Air Flow Sensor; Walker Products has strict testing procedures that are performed in our full in-house facility. Walker Products MAF sensors are 100% new units (not Remanufactured) and tested to meet or exceed OEM specifications. Carnegie mellon computer science masters acceptance rate