Hello Steve,

I guess the problem you run in to is that the Vanagon(German T2 Bus)
is either a company truck or out dated. Big companies
are interested in mass production and for the stainless steel exhaust systems
 for a Vanagon won't be enough demand .
The companies  who  build these exhausts  will build a hand crafted
unit for a high price in a small quantity.
I know two  companies who build this exhaust system , but again they
produce some systems and when they are sold then it  takes some time untill
they produce
another production row.
You need a little patient but I'm sure when you ordert the system at the
right company
they will deliver.

Sincerely Detlev
Vanagon Projekt
2551 Second Street
Livermore, CA 94550
925 447 8224