I'm trying to get my underhood detailed to as clean as possible and the exhaust manifolds are the biggest problem. Some of it is covered by the factory heat shield but what is exposed has surface rust. I don't even know if it's a good idea to try and swap them because I'm sure the bolts will snap. I saw there are new aftermarkets but it appears they have and EGR pipe flange on it which there is no EGR on here. So if I was going to do it I would get another set and have them coated. I've tried the ultimate high heat ceramic paints for exhaust on my 73 Charger exhaust manifolds and although they don't look this bad. But I don't drive it much but I know it gets a whole lot hotter under the hood of my Charger than my Dakota. Is powder coating even going to hold up on the manifolds? Most importantly do all the bolts snap off easily when trying to change them?