This is one of the plates that Scott was selling several years ago.. They are made from 1/4" alum and are milled out pretty nicely. It comes with the instructions and epoxy that Scott had provided to glue it to the top of the intake..
The instructions that Scott provided say the the adhesive is very strong and that is difficult to remove afterwards. He suggests using 3M double sided tape if you think you may want to remove it in the future.
I haven't actually seen one installed but they were made to be the same size as the raised area on the top of the intake. I would imagine that they fit pretty well.
Here's pics of the same one Scott did installed. Once it's on using the epoxy, it's on. You might be able to get it back off at some point, but it would be quite the challenge.