BMW Oxygen Sensor (Bosch # 13 884) for E36 3 series and Z3. Two required before catalyst and 2 required after catalyst. Fits the following models:

E36 328i SEDAN E36 328i CONVERTIBLE E36 328i COUPE E36 M3 SEDAN E36 M3 CONVERTIBLE E36 M3 COUPE

E39 528i SEDAN

Z3 Z3 M COUPE Z3 Z3 M ROADSTER