ROI. Is it worth it to the suppliers/vendors? I'm not sure. They may sell a dozen ground effects kits in a year maybe if they could get them? Just spit ballin' it, but consider 20 years ago before Obama's crush-a-thon debacle and you probably had zillions of G-bodies zipping around and people trying to modify them, whatever. And now? A mere fraction of what it was. Thus, the support base for G-body ground effects kits is a whole lot less. Meaning no huge incentive anymore for anyone to produce those kits. If they did, it would be limited, thus more $$$ to make it worth the effort. So can it be done? Yes. Will it be done? Doubtful. Would it be nice if those options still existed? Sure. But it's drying up out there. G-bodies are a niche car in today's world, like it or not. Those that were there still appreciate them, and some that were born afterwards have grown to like them too. But look at the prices. Good, solid ones are pricey, and unless someone has lots more $$ to toss at it, doubtful they'd want to throw an aftermarket ground effects kit on something they just shelled out $20-25K or more for. It's just the nature of the hobby.