Exhaust Manifolds and Gasket Kit (99-03 5.4L F-150)Find parts that fit my vehicle

Restore Proper Exhaust Flow. These direct-fit exhaust manifolds replicate factory port alignment to eliminate exhaust leaks and restore smooth scavenging through the header pipes. The precision-machined flanges and included multi-layer gaskets ensure a tight seal under repeated thermal cycling, improving engine responsiveness and reducing harmful emissions.Rugged, Corrosion-Resistant Design. Constructed from high-grade cast iron and heat-treated to withstand constant temperature extremes, the manifolds resist cracking and warping. The zinc-rich coating protects against rust, while the OE-style manifold design maintains stock fitment and clearance.Installation. Support the exhaust system, remove the old manifolds and gaskets, clean the cylinder-head flange surfaces, install the new gasket and manifold assemblies with supplied hardware, torque to factory specs, then reconnect oxygen sensors and exhaust pipes.Application. The Exhaust Manifolds and Gasket Kit fit 1999–2003 vehicles equipped with the 5.4L engine.

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