You are looking at a brand new pair of genuine BMW Carbon Fiber. For a BMW F97 X3 M 2020+ and F98 X4 M 2020+. Yours will be brand new in factory packaging. This will replace the stock diffuser you presently have if you did not choose the carbon fiber package when ordering your X. If you like the look of this upgrade, you’ll also enjoy the other impressive accents which you can find by clicking on the link to our store below and then going to the ” BMW X3 & X5 Accessories ” category on the left hand side. Check out our extensive selection of great BMW parts and accessories by going to our store. Track Page Views With. Auctiva’s FREE Counter. The item “BMW OEM 2019+ F97 X3 M F98 X4 M Rear Bumper Diffuser Carbon Fiber Brand New” is in sale since Tuesday, July 14, 2020. This item is in the category “eBay Motors\Parts & Accessories\Car & Truck Parts\Exterior\Spoilers & Wings”. The seller is “euroactive” and is located in Olyphant, Pennsylvania. This item can be shipped worldwide.