What I would add is that on the aluminized exhaust systems that I have used and installed, there was no apparent exterior difference in appearance to non-aluminized if layed side by side.
The last one I've done was about ten years ago. I have not done one recently.
That issue got so infectious that the "factory rep" for Walker had to be brought in. What he said is not something that I made up.
He said, "the aluminum is in the metal". Believe it or not.
As far as the Pantera wiring goes, I was told that it is Marine wiring. I'm not a metallurgist and I'm not the one that made that determination.