I painted them 3 years ago so don't recall what paint I used. I would go to an auto store and see if they have a high temperature (usually engine paint) paint in silver that will be close. It is behind a wheel and the front caliper is five feet in front of it behind a wheel so 99% of people will not notice any slight silver difference. For the clear coat, I've done this on several cars and never had clear coat turn yellow but I always used a clear coat for wheels which is a more durable clear coat. You might even see if there is a high temp clear coat made for engines. Just remember anything will look way better than just leaving them (the rears) to the elements. You see most rear calipers look way worse than the fronts if they did not paint them (IMO).Not to be a pest but... which brand paint did you use on your caliper? Would any silver be close enough? Clear coat scares me in high heat situations as it sometimes can turn yellow. I have the Polestar decal set at home so all set there.