Manifold Bolt Hole Quantity: 6. Exhaust Manifold Kit ". We are an authorized distributor for Dorman Products. Why is that important?. Gasket Or Seal Included: Yes. Flange Stud Hole Quantity: 0. Interchange Part Number : 1F1Z9431AA, 4F1Z9431AA, F6DZ9431S, YF1Z9431BC; 101200.