[mcfly94]

Nothing wrong with car builders ti wrap.

I use it on my 4" dump pipe.
Mild steel dump pipe ceramic coated by Ceramic Coat Australia (Pacemaker) inside and out with turbo ex is no where near enough to prevent melting things on a turbo setup.
Turbine is ceramic coated with a beanie on it to and no issues of eating through the coating, yes the moisture stains it but it dosent compromise the coating.

That being said if you have room for ally heat shields with a glass based heat liner with space to create a barrier; this will be far more effective and its the reason OEM does it this way.

Ti wrap is good for tight spaces, no doubt about it.