Well, when I bought my LBMs for the Bird several years back I had R.A.R.E. coat them. Within a couple of years they rusted up pretty good. When I pulled them off the car when it was rear ended I called RARE and told them. They looked up my receipt and told me to ship them back. I did, they called me and said they would re-coat them free of charge and ship them back to me.
The LBMs are now on my friend's 61 Safari wagon that some of you seen at this year's POCI event in KY. They look great and have thus far held up better this time around then they did when I first bought them and put them on the Bird.
I am now just about to order another set, actually the H.O. manifolds for the early "A"-body cars which will go on our LeMans. I will most likely have them coat them as I can't imagine any process that I can do myself would or could be any better than their process...