I bought the Cervinis Stalker / Cobra kist a couple years ago. Since then the side skirts have split in two places, and the rear bumper ripped out of the side bolt that holds it to the body. I need to replace them but was looking to do it cheaper than the 700+ dollars it would be to go back with Cervinis. Has anyone had good luck with Design Concepts or the other companies that sell the Cobra side skirts or bumpers.