What are OEM bumpers made of?!
I am contemplating on buying an M3 replica bumper for my 335i and saw vendors that sold them in polypropylene and polyurethane. Both claiming it is the same material as OEM.
Ok, I have gone through the search and google for this question.
I have read threads and sites where they claim that oem bumpers are made of polypropylene, and then I came across sites that claim they are made of polyurethane.
So my question is:
WHAT ARE OEM BUMPERS REALLY MADE OF!?!