I'd be interested, but maybe a simpler solution would be to redesign the
J pipe to give more room for the muffler and cat. There is plenty of
room to have it jog over to the left six inches, but a new support
bracket would also need to be fabricated.

Would the 2.1 fit without the cat?  Mine is empty, and it came from the
factory that way.  I pass emissions with no problem.

Note that it isn't the engine, it's the model year that is the
determining factor.  All 83.5-85 Vanagons use the same exhaust system,
regardless of which engine is installed.  You are looking at 2 1/2 years
of production vs. six, but without knowing how many are still on the
road It'll be hard to estimate demand.

--
Stuart MacMillan
Seattle

'84 Vanagon Westy (now with 2.1 engine)
'65 MGB (Daily driver since 1969)
'74 MGB GT (Undergoing restoration)

Assisting in restoration:
'72 MGB GT (Daughter)
'64 MGB (Son)

Parts cars:
'68 & 73 MGB, '67 MGB GT