This has been covered before

It's out of the 757 but Thermotech in Hopewell.
They did Ramey Builts turbo housing and several street car turbo housings(although some baked off.. but they were used housings dunno if that matters)

They also did a header for a all motor setup I had.

They also did the headers on my fathers Nova. Have held up fine with street and track driving.