"Plug and Play" fitment for mine SLK. No alternations required, do not even have to remove/trim dust covers.
Built Quality is amazing. Really looks like a piece of art. I would love to have another caliper just to decorate my room :-)
Installed BBK in front and Small BBK into rears. for Rears, again, no alternations required, fits into original hand brakes assembly.
This is all done for racing application (see yellow compound on a pictures). Will update my post later with more details related to track use.