Hi, you are looking at a GENUINE BMW M Performance Rear Diffuser for a 2014-16 428i M sport, PAINTED: MINERAL GREY, PART#: 51-19-2-334-543.
This item is in very good condition and was on my car for less than 18,000 miles. I am currently parting out my car, so that is why I am selling this part. The asking price is $400 for local pickup in the Pasadena or San Gabriel area. If you want this item shipped, please PM me.
Thanks for looking!