Burton's/Ashley exhaust manifold

[chinkamon]

Hi all

Does anyone know if the precrossflow exhaust manifold that burton sell is stainless or not? 

I've emailed Ashley direct with no response an still waiting for Burton to reply? It doesn't state anywhere what it's made from as far as I can see? 

Part number is ashm30 but the photos of the 3 manifolds they sell for cortina ( lotus and precrossflow)  show them in different colours, 1 looks plain steel ones black and this ones a shiny steel looking more a gold hint than just plain steel