While commuting to work I've noticed many sports type cars are going with the black out of the lower rear valance around the exhaust pipes. It got me thinking and I've visualized the look on the WW rear valance. While the car is up I'll get some black painters or masking tape and simulate the layout on the car. Basically the lowset portion of the valance up and around the exhaust openings would be black..'flat black'. If I like it then I would make it permanent with paint.
I've been looking at the back of the Z for almost 2 years where it sits and I've come up wit a few ideas. The mesh is one. I didn't really explore different mesh options but I will look for a different type of smaller "finer" material. I just happen to have the gutter guard in the garage and tried it out for the effect. I think with the right pattern and a better trim job it would look great.