Some items from this specific schematic: Sensor,oxygen, Nut Self Lock 8mm, Stay,exh Mnfld, Gskt,exh Mnfld (nas).
The lowest price component in this Exhaust Manifold parts-list fiche is the Bolt Flange 8x10.
The sub assemblies and components that make up this Exhaust Manifold include this Mnfld Assy,exh, the most expensive part.