Hi, I used red engine paint with clear coat ,It's been 3 years now and no chipping.
Just make sure you completely clean the brake calipers with a good degreaser, then 3 light coats of paint , stick on the Porsche labels of your choice and 2 - 3 coats of clear and you are done. Use a garbage bag and cut out a opening enough to pass the caliper through, cover car so that no paint residue gets to it.
Simple and fast, good luck
