A steel exhaust manifold flange. The EGR gets into the system from the stock
 manifold through two small holes below the exhaust ports in the rotor
housings.
 You might need to come up with a new gasket for the stock 91 turbo
 exhaust manifold you are using Dave. You could also block it with
 the intake manifold flange I think. I will have to look into that
 some more when we get back from OSH.

Actually,  In the 91 turbo, the EGR gasses are only ducted up to the hole
beneath the center intakes.  From there they go into the lower intake
maniforld and warm the front half of the intake manifold before being split
up by some sort of vacuum controlled devise and distributed into all the
intake pipes.  The rear half of the intake manifold is warmed by water on its
way to the turbo.  I still dont understand going to all the trouble of
intercooling just to warm everything up again going through the intake
manifold.  Maybe keep fuel from setteling on the sides?

Dave

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