Answering a couple of questions:

The ceramic coating is available in a few colors, including black, which vary by manufacturer. The powder coater you use to do the coating will impact the choices available to you.

The coating is so much easier to maintain than bare stainless, which is why I used it on my other cars. No bluing, no discoloration, no polishing. Basically you do nothing but wash it once in awhile to remove bugs and other detritus.

As for the screened cover, at the moment it is cosmetic only. My intent is to find a suitable waterproof filtering medium to insert under the perforated cover, then place holes in the S&S emblem area. The pre-perforated cover is 1/16" thick stainless I bought online for a few dollars and has the edges peened over to give it the 3 dimensional look.

Steve
Late 2012 M3W