I recently used an exhaust manifold paint made by Eastwood Company and I thought I'd share it with you all. It's a great product, easy to apply, nice finish and it goes a long way if you have multiple manifolds to do. I used silver but there othe colors. My uncle used on his Hemi manifolds 10 years ago and they still look nearly perfect. Just thoought I'd share the info.
This product has been discussed here before. I used it on my exhaust system and it worked great. I swear by this stuff.