having headers coated

[WSSix]

I wasn't happy with the local place I had coat the headers I built for the TA. They started rusting shortly after having them finished, and I question if they did the inside.

As I start to gather parts for the C10, I'm facing having to get headers coated again. I really want a quality job this time. I want them in black, too. There's a very good chance they will be steel again so I want someone that will prep them thoroughly. Any suggestions? Shipping is not a problem.

Thanks