has anyone tried KBS coatings XTC echaust paint?

i tried their Motor Coater engine paint and was very impressed. now i'm thinking of trying their XTC extreme temperature coating on a set of ram horns. if you have used it how did it hold up ? did you bake it in an oven as they suggest or let it cure on the motor as it ran?

here is a link: http://www.kbs-coatings.com/XTC.html