....it is easy to touch up the manifolds, when it needs it, which is why I use it. For the convience and the look. A small plastic cup of it was about 20 bucks but it will do about 3 sets of manifolds. My friend just used it on his 454 headers and is pleased with results....no, he's tickled pink with the appearance!!
Jay, I don't like trying to toothbrush it on. I cut the toe out of an old athletic sock and rub it in. Then buff it and it will shine a little. Start the engine and get it good and hot after you put it on the manifolds and then to a good "second" rub and your good for some time. Let me now how you like it.
EDIT: as everyone probably knows it goes on and last better if the manifolds are good and clean before applying it. I sand blasted mine.
Last edited by Achipmunk; 05/12/2013 10:03 PM.