My TTI headers are ceramic coated, but some spots wore off during some aggressive cleaning. I sprayed VHT silver (A close match in color) and I like it. Later, I pulled the headers and cleaned them with Acetone and a scotch brite, then resprayed them both entirely with the VHT, not just the places I wore off the ceramic coating. They have held up fine with zero peeling. Now I find and stop oil leaks before they can stain the headers!