Just wanted to give some props to Pro Coat on Crenshaw. I had then Thermal my Ultimate Racing downpipe,uppipe, dumptube. The service is great and the parts look perfect. I was so pleased I am having them coat my 35r Compressor housing, Exhaust Housing, TGVS, Intake Manifold. My Gruppe-S header is thermal coated my Jett Hot and you cant see any visible difference looking at them.