The component with the lowest price in the EXHAUST MANIFOLD schematic is the Bolt,flange 8x22.
On this parts fiche the Bolt,flange,10x30 is the most specified component.
Some items from this specific schematic: Bolt-wash, 10x22, Gskt Comp,exh Mnf (nas), Bolt,flange 8x22, Washer, Spl, 11x28.