Exhaust Manifold Kit. Exhaust Manifold, 3 Manifold Gaskets, 1 Flange, 3 Studs, 3 Nuts. Left; From 4/86. Square Inlet Port. More like a complete kit than a single part, many of our Exhaust Manifolds include gaskets and hardware for a complete installation. Since this part is a direct replacement, the exact fit adds another layer of efficiency and convenience.