I have an unpainted M Performance rear diffuser for sale. It's only been lightly used and is in excellent condition.
This is a great add-on for your M235, really improves the look of the rear. You can leave it unpainted like I did, or have it painted to match the color of your car.
I am located in Westchester County and would prefer a local pickup but I am willing to ship at your expense.
Let me know if you're interested!
Thanks