Sorry for asking questions in english, hope you all do not mind.
1. As per pics attached, you could see that the aluminum heatshield behind exhaust manifolds is not looking that nice and plan to replace it. Would the original part still be available for sale? Where to buy one? Or would an aftermarket aluminum heatshield be ok? Any recommended brand?
2. I plan to ceramic coat the exhaust manifold to gain a bit of power and keep the heat down inside the engine bay. Anyone has had any experience with ceramic coating? Good and worth long term investment?

Many thanks!
Cheers,
Olie