Rear bumper fascia protector
#13
#18
#19
My '06 didn't have one. I went to the parts department at mt Chevy dealer and paid ~$50 for the part including the 3M tape. It took less than two minutes to do the install. Clean the surface, put tape on fascia protector, align and stick on. What I found "funny" is that it was a $75 dealer installed option. The parts department counter guy, though that it was a standard item on all HHRs.
#20
Here is a picture of it on my SS. I bargained with the dealer to throw it in with the car, but I installed it. Very quick and easy, but it doesn't cover too much... I think the black accents mine nicely though.