being that I started this thread last January, no one has come up with For the perfect set of diffusers, and finding the ones from the factory is like pulling hen's teeth, so I decided to try the fiberglass ones. I found that there well made, other than being stiff, they did that. Good, with a slight bit of adjustment. You can make them fit almost perfect. Anyway, I'm satisfied with mine,So what I did was. I fitted them up with two-sided tape, then put the push buttons in, then added a couple of black screws. And yes, my exhaust pipes are painted black. my car is not dirty,it just looks that way LOL , it rained last night and i went out to play in our Liquid sunshine. jim