This BMW Genuine M Performance Rear Diffuser in Black Matt is designed to fit the F30 and F30 LCI models. The diffuser, with the part number 51 19 2 291 417, is a genuine OE (Original Equipment) product from BMW and comes as a single unit. This rear diffuser adds a sporty and stylish look to the vehicle’s rear end, enhancing its overall appearance with a touch of M Performance flair. Only 1 in stock at this clearance price. We are a main BMW retailer so you can be sure your getting a genuine part.