This part is listed by BMW as BMW part number 11617833212 (11 61 7 833 212) and is described as the electric air shut-off valve for the stock E46 M3 intake air plenum.
Be VERY CAREFUL handling this hose and pipe on the air plenum. The hose is plastic and the connector is easily broken when pinched for removal. Since BMW does not sell the connector or hose separately, it's a very expensive piece of brittle plastic.
This is a Genuine BMW S54 air shut-off valve with a two year warranty. Buying a Genuine part will usually be more expensive than an OEM or aftermarket brand but you are assured that it meets BMW's designs for fitment, performance, and longevity. It will also be the very latest design, incorporating any updates or revisions that an aftermarket brand typically will ignore.
For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.
BMW Fitments:
3 Series
E46 (99-05) > M3