Multi-fit - 2.50 in. Outlet - Gen III/Gen IV Chevrolet LS Engine;
Multi-fit - 2.50 in. Outlet - Gen III/Gen IV Chevrolet LS Engine;2.5 inch outlet diameter offers improved flow for maximum performance from a cast iron exhaust manifold; Cast from Hi-Silicon-Moly Ductile Iron to provide durability and corrosion resistance; Intended for GM LS engine swap applications where durability, quiet operation, and leak-free sealing is desired; Silver ceramic coating for reduced engine compartment temps and improved corrosion resistance; Nickel plated steel mating flanges, MLS mating flange gaskets, and mating flange hardware included; Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance; Perfect complement to Hooker engine swap mount plates and Holley engine swap oil pans;