Exhaust pipe chrome left — a genuine BMW part, number 18 10 7 501 103. The number stamped on the part is 18107501103; BMW's catalog files it under the short number 7501103. You will find it on our Exhaust shelf, under Catalytic converter/front silencer.
It fits the E46 sedan, coupe, convertible and touring (320i, 323i, 328i and 330i, 1999–2006), with the M52 or M54 engines — and the European-market versions.
BMW draws it on 2 diagrams, among them Rear silencer with exhaust flap (18_0327) and Exhaust system, rear (18_0433). It weighs about 103 g (0.2 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.