Rust-Oleum Automotive High Heat Spray
Rust-Oleum produces more than one high heat paint, among which this one is their best. This enamel paint is designed to resist heat up to 2000 degrees Fahrenheit. Although it will bond to bare metal, they recommend using their high heat primer spray with it for best results. The finished paint is gas and oil resistant. It is also a rust resistant formulation, designed to stop rust from spreading. The can comes with an any-angle comfort spray tip, which allows you to paint underneath manifolds without removing them.