AFE BladeRunner Ported Ductile Iron Exhaust Manifolds 03-07 Ford 6.0L Powerstroke AFE-49-44064-P And the aluminum aftermarket units

And the aluminum aftermarket units can easily crack

Constructed of UV-stable cross-linked polyethylene

Replacement tube for hot side of the intercooler

The cold side tube includes a factory-style quick connect with an O-ring seal for a quick and simple install

Billet 6061-T6 Aluminum Manifold:

AFE BladeRunner Ported Ductile Iron Exhaust Manifolds 03-07 Ford 6.0L Powerstroke AFE-49-44064-P And the aluminum aftermarket unitsEnhance the exhaust flow right from the heads to reduce EGT's and drive pressure with these direct replacement exhaust manifolds from AFE. MACHINED PORTS: These manifolds have both the inlet and the outlet ports machined to match the factory ports. This allows for maximum flow, without compromising the integrity of gasket sealing. AUXILIARY PORTS: An Exhaust Gas Temperature (EGT) probe port is incorporated into each manifold for easy installation of