The OEM 1969-73 Ford Mustang 351C 4V Exhaust Manifold Driver D0AE-9431-F is a vintage part made of gray cast iron, designed for bolt-on installation on the left side of the vehicle. This unique piece is a perfect fit for gasoline-powered Ford Mustangs from the specified years, adding an authentic touch to the car's exhaust system. The part is not a performance-enhancing accessory, making it ideal for enthusiasts looking to replace a damaged or worn-out manifold with a genuine OE/OEM component.