These Flowtech cast iron exhaust manifolds have a 2.25 inch outlet, natural cast finish and are designed to hug close to the engine block so they fit into a wide variety of replacement and engine-swap applications at a budget friendly price. 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 and leak-free sealing is desired at a budget-oriented price

Nickel plated steel mating flanges included (mating flange fasteners are not included)

2.25 inch outlet diameter offers improved flow for maximum performance from a cast iron exhaust manifold

2 bolt exit flange configuration matches the E-rod exhaust manifolds for a factory like fitment. This allows the use of factory gaskets and fasteners if desired, for an OE quality seal and fitment to emissions devices

Cast from Hi-Silicon-Moly Ductile Iron to provide durability and corrosion resistance

Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance

Available in plain as-cast finish or with black or silver ceramic coatings for reduced engine compartment temps and improved corrosion resistance