Exhaust Manifold Material: cast iron Mounting Hardware Included: No Exhaust Manifold Gaskets Included: No Quantity: Sold as a pair. These LS cast iron exhaust manifolds have been designed to hug close to the engine block so they fit into a wide variety of replacement engine swap applications. They are cast from high silicon moly ductile iron to provide durability, leak free and less under the hood noise than conventional headers. They also feature 304 stainless steel mating flanges to help provide a leak-free installation, and a two bolt exit flange which can be used with OEM style gaskets and fasteners for an excellent seal. .
eBay