:You could do the same with the Powertrix if it lays in place perfect. Mine did not. The front wanted to lift when the back was bolted in place. I could push them down and the screws would have help them in place, but I didnt want to drill holes. My Karuma spoiler laid flat so the tape worked fine. So I am thinking the tape will take care of that. For the screws at the front, do you think I can epoxy on a "factory-like" plastic retainer/plug?