My initial opinion based on the pictures.... (I realy need to see the car though) is that it is legal.

The comment: "Material may be added or removed from the top of the strut tower to facilitate installation of adjuster plate" is working in his/her favor on this one I think. Somehow we we would need to prove that the material was unecessary, and that is probably not possible without seeing the car and talking to the person who installed the plates.

Thats just my quick opinion from looking at a picture...

Here is another question for you: My experience has shown that simply adding a camber (camber/caster) plate to the top of a strut tower without removing material actually does the same thing as building up the plate 1" or so, and generally material needs to be taken away in order to fit the plate and strut under the hood without it hitting. Thus I think that could be a "dead" issue in my mind, so if it was what other benefit does adding the material where it has been added help in the cars dynamics to make it better than someone elses car?

Raymond "Just curious" Blethen