Since nobody is selling the cool M'z tune bumper flares I figured I'd make my own (My job is custom electronics and fabrication work on yachts). I was looking for similar stuff to compare to for mounting ideas, and it looks like the carbon downforcers from Street Unit require you to drill holes through the bottom of the bumper. I just wanted to see if that was true, and if anybody has gotten them, is that mounting style pretty strong? I'm just not sure how confident I am in that plastic of the bumper...