Developed by the Shelby Skunkworks team at the Chrysler/Shelby Development Center in Santa Fe Springs, CA in the mid 80's this prototype exhaust manifold was designed (and run) on an experimental 2.2 Turbo engine.  The keen eye will notice it has an IHI turbo flange where the manifold meets the turbo, yet it has the standard 8v flange where it meets the head.  A very rare piece of Shelby/Dodge prototype history.