two piece EM

[Phil Payne]

> There has been some debate on this, but  the word on the list is that no
> cars in the USA actually came from the factory with the 2-piece exhaust
> manifold. Apparently this was available as a replacement part to combat the
> broken studs issue caused by the 1-piece exhaust manifold.

Not broken studs but manifold cracks.  We now susspect the major cause to be failure of the
right side engine mount, usually caused in its turn by the fauilure of hte heat shield
(ur-quattro) or the absence of the air duct (Type 44).

As far as I'm aware _NO_ two-parts were ever fitted by the factory.

> I recall some discussion about using a support bracket for the EM that
> _might_ lessen the likelihood of the broken stud problem.

There were two, bolted to the wastegate at the top and held to the engine via the transmission
bolts.  They don't seem to help and we now routinely leave them off.

-- 
  Phil Payne
  http://www.isham-research.com
  +44 7785 302 803