I have used Jett Hot ceramic coating on three exhaust manifolds with great success. You send it to them and they blast it and coat it. It's pricey but sure looks great and lasts.
~ Phillip
1949 GMC Suburban - 10 year project
1952 Pontiac Chieftain Convertible straight 8 hydramatic
1945 GMC half ton truck - Driver- Sold 9-15-25
1946 Chevy COE - SOLD 1-5-26 BUH BYE CHEVY!
1959 GMC Half ton long bed NAPCO
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