BMW 3 Series G20 G21 Genuine M Performance Rear Diffuser Carbon 51192455819 51122455820 - Used. Overall in nice condition with minor wear. One of the mounting points has broken however it still fits fine.You could fix this or mount as is. I have checked the part number on Real OEM and I believe it has been superseded by 51192455819. This item is in the category "Vehicle Parts & Accessories\Car Tuning & Styling\Body & Exterior Styling\Spoilers & Wings". The seller is "geeteer" and is located in this country: GB. This item can be shipped to United Kingdom.