M Performance Rear Diffuser Center Insert, Black - G20 330i/M340i

This part is listed by BMW as BMW part number 51192455821 (51 19 2 455 821) and is described as M Performance Rear Diffuser Insert, Black - G20 330i/M340i.

This piece fits with the M Performance rear bumper insert (#51192455859). It will not fit with the stock rear bumper. This is only the middle / lower insert, and option piece that is sold separately from the complete M Performance rear bumper diffuser.

This is a Genuine BMW Rear Diffuser Insert 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.

**M Sport Bumper and Rear Diffuser Sold Separately.

For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.