Hey thanks! Neither, they are vinyl inlays that are honestly very challenging, need tons of patience to get in there just right, as they aren’t perfectly precision cut……but i really love contrast on these covers. I did the same on my current setup, but am going with a gt350 intake, adding gt500 valve covers powdercoated orange with the black coil covers, so needed orange lettersHoly cow! Those look fantastic! Did you mask and spray or flood?