This is a genuine BMW aerodynamics package, part number 51 19 0 025 083. The number stamped on the part is 51190025083; BMW's catalog files it under the short number 0025083. You will find it on our Interior Body shelf, under Other Body equipment parts.
It fits the E46 compact (316ti, 318td, 318ti, 320td and 325ti, 2001–2004), with the M47N, M54, N40, N42, N45 or N46 engines.
BMW draws it on the Aerodynamics package (03_0874) diagram. It weighs about 8.6 kg (19 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
