The instructions say you may have to trim or stretch the product. I consider myself handy. I've tinted the windows in all my vehicles. Vinyl wrapped bumpers, emblems, ect. Tail light covers for the 2018 f150 need to be stretched more than a half inch vertically. That's not even taking into account the curves in the light. I tore the first one trying to stretch it. It seems if you may have to trim or stretch wouldn't trimming would be easier.
I have contacted Rvinyl. We'll see how they handle it and I'll change review accordingly.