EZ,
I think it depends on where you send it. I have a place local that does alot of powder coating for me. They did an entire frame for a Corvette for about the price you were quoted on the manifold and turbo. I know ceramic coating is more than powder coating but it shouldn't cost as much as $350. I have a sand blast cabinet so I can prep the pieces myself and the place I'm taking them will let me do that.
I think it depends on where you send it. I have a place local that does alot of powder coating for me. They did an entire frame for a Corvette for about the price you were quoted on the manifold and turbo. I know ceramic coating is more than powder coating but it shouldn't cost as much as $350. I have a sand blast cabinet so I can prep the pieces myself and the place I'm taking them will let me do that.