I hate 'em. They're noisy. They make it harder to wash and dry a vehicle. They do nothing for me visually. They increase the price of the vehicle. I thought Bob Lutz had said something about making them optional early on in his current stint at GM.

The only "delete" option I'm aware of is by checking the "SS" box on a Trailblazer order.

Picking up on Scott's comments, I don't think they affect the wiring harness.