Exhaust manifold bolt. Left. Right. A threaded rod with a drive head (such as hex, 12 point, torx, etc.) on one end used to secure the Exhaust Pipe Heat Shield to it's mounting point. An Exhaust Bolt is a specialized fastener designed to secure various components of an Exhaust system, including the manifold, catalytic converter, and Exhaust Pipes. Exhaust Manifold Bolt. Exhaust Manifold Heat Shield Bolt. Hardware to attach the Heat Shield to the catalytic converter. Power Steering Pressure Hose Banjo Bolt. HEAVY HX ACORN Flange HD. Catalytic Converter. Cross over Pipe. Manifold. Power Steering Pressure Hose Banjo. Return line. Included with: Exhaust manifold, Preconverter.