| Hooker’s popular LS exhaust manifolds are now available with a 2.5-inch diameter outlet for improved flow. These cast iron exhaust manifolds have been designed to hug close to the engine block so they fit into a wide variety of replacement and engine-swap applications. Their contoured design aims the exhaust directly at the exit port for improved flow. Being cast iron means they will provide years of leak-free performance with less under hood noise than traditional headers. Plus, their shorty design means you can route exhaust tubing close to your frame/floor pan for maximum ground clearance.
Features:
Intended for GM LS engine swap applications where durability, quiet operation, and leak-free sealing is desired
Available in plain as-cast finish or with various Hooker ceramic coatings for reduced engine compartment temps and improved corrosion resistance
Nickel plated steel mating flanges, MLS mating flange gaskets, and mating flange hardware included
Cast from Hi-Silicon-Moly Ductile Iron to provide durability and corrosion resistance
2.5-inch outlet diameter offers improved flow for maximum performance from a cast iron exhaust manifold
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 | 
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