This part is listed by BMW as BMW part number 18307599743 (18 30 7 599 743) and is described as the mid-pipe exhaust section for E82 135i models (with N55 engine). This mid-pipe is also used as an upgrade for the earlier N54 model 135i. Please research first before purchasing for an N54, though, as we can't support uses outside of the N55 models.
This is the Genuine BMW N55 midpipe 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.
Please note, that this midpipe is quite long and difficult to ship. Our shipping rate is based off the volume / weight, and as such is fairly price prohibitive.
For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.
BMW Fitments:
1 Series
E82 / E88 (08-13) > 135i N55 (11-13)
E82 / E88 (08-13) > 135is N55 (11-13)