BMW Genuine Rear Bumper Cover Flap - Trim Flap for Trailer Hitch Mount for X3 3.0i X3 3.0si BMW Genuine Bumper Cover Flap - Trim Flap for Trailer Hitch Mount Not for cars with M Aerodynamics Package. Please see Product Description below for vehicle compatibility. Manufacturer Warranty: 24000 miles or 2 years Quantity within package: 1