The primary difference between titanium exhaust wrap and black titanium exhaust wrap is in their appearance and manufacturing process, as you mentioned.

Titanium Exhaust Wrap:
Titanium exhaust wrap is typically made from pure titanium fibers without any additional coloring or dyeing processes.
It retains the natural color of titanium fiber.
It is known for its high-temperature resistance and insulating properties, which help reduce heat transfer from exhaust components and can protect nearby components.

Black Titanium Exhaust Wrap:
Black titanium exhaust wrap is also made from titanium fibers but undergoes a dyeing or coloring process to give it a black or dark gray appearance.
This coloring process is often done to match the aesthetics of the exhaust system or to achieve a specific look.
Like the pure titanium wrap, it also offers high-temperature resistance and insulation properties.

In summary, the key difference is in the color and appearance of the two types of wraps. Pure titanium exhaust wrap remains nature color, while black titanium exhaust wrap is intentionally dyed or colored to achieve a black look. Both types of wraps offer similar performance benefits in terms of heat management and insulation. The choice between the two will largely depend on your preference for the appearance of your exhaust system.