My car is equipped with the "Special Edition Air Dam" Seen Here. Since it's made of fiberglass it cracks at the very hint of a curb. I've got to run a valance like this because of the tow-bar hookup on my car.

I'm wondering if anyone knows of a source for an air dam like this that is made from something more forgiving than fiber glass. Ideas are also welcome on other options that are compatible with the tow hookup

There is one called Flex-dam but you would have to cut holes in it for your towbar.