2004 Ford F-250 Super Duty Exhaust Manifold and Headers

Certain original equipment exhaust manifolds warp and crack due to lower-grade iron construction. This Dorman OE FIX replacement is made of high-grade ductile iron that better handles heat and stress for greater durability.

Product Features:

• Upgraded materials – this replacement exhaust manifold is constructed of ductile iron to prevent future warping and cracking
• Complete kit – includes new manifold, manifold gasket, 2 studs, 2 nuts
• Direct fit – reverse engineered from original equipment for seamless installation
• Quality engineering – designed and tested in the United States

Certain original equipment exhaust manifolds warp and crack due to lower-grade iron construction. This Dorman OE FIX replacement is made of high-grade ductile iron that better handles heat and stress for greater durability.

Product Features:

• Upgraded materials – this replacement exhaust manifold is constructed of ductile iron to prevent future warping and cracking
• Complete kit – includes new manifold, manifold gasket, 2 studs, 2 nuts
• Direct fit – reverse engineered from original equipment for seamless installation
• Quality engineering – designed and tested in the United States

This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:

• Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles
• Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance
• Complete repair – includes all necessary gaskets and downpipe hardware
• Trustworthy design – built by industry leader in aftermarket manifolds

This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:

• Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles
• Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance
• Complete repair – includes all necessary gaskets and downpipe hardware
• Trustworthy design – built by industry leader in aftermarket manifolds

This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:

• Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles
• Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance
• Complete repair – includes all necessary gaskets and downpipe hardware
• Trustworthy design – built by industry leader in aftermarket manifolds

This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:

• Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles
• Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance
• Complete repair – includes all necessary gaskets and downpipe hardware
• Trustworthy design – built by industry leader in aftermarket manifolds

aFe’s Twisted Steel headers outflow and outperform the Ford diesel factory exhaust manifolds for a true, bolt-on performance header system. These precision-designed, hand-crafted headers are mandrel-bent from 1-3/4″ into 2″ heavy duty gauge .120″ wall, brushed finish 304 stainless steel tubing and are 100% hand TIG-welded for strength and durability. Optimized tube lengths deliver true pulse control technology for improved flow and performance across the power band. Laser-cut, heavy duty head flanges are machined to match the exhaust ports for a secure seal. EGT ports with plugs, quality hardware and gaskets are included to ensure hassle-free installation and quality fit._x000d_Performance Gains: Outflows factory manifolds by up to 7%._x000d_Brushed Finish 304 Stainless Steel Construction: Constructed of brushed finish .120″ wall, 1-3/4″ into 2″ mandrel-bent 304 stainless steel tubing for strength and durability._x000d_Optimized Tube Lengths: Tube lengths and mitered collectors are optimized for true pulse control technology which improves flow and performance across the power band._x000d_Heavy Duty Flanges: These headers incorporate laser-cut, heavy duty flanges machined to match the exhaust ports for a direct-bolt on, leak-free seal._x000d_EGT Ports: Two 1/8″ NPT exhaust gas temperature (EGT) ports are incorporated. This allows for easy installation of sensors, gauges or testing equipment._x000d_TIG-Welded: 100% TIG-welded for strength and durability._x000d_All aFe exhaust systems are engineered and manufactured in our Corona, California manufacturing facility.

Product Features:

• Outflows the factory exhaust manifolds by 7%, improving performance and throttle response
• Constructed from 1-3/4 IN to 2 IN mandrel-bent 304 stainless steel tubing
• Optimized tube lengths deliver true pulse control technology for improved flow and performance
• Mitered collectors for optimal exhaust scavenging and decreased turbulence

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 gauges or testing equipment. There are three additional cast in bosses provided to allow for alternate testing points. Hassle-Free Installation: These manifolds are compatible with the stock up-pipes, which allows the manifolds to be installed without having to remove the turbocharger down-pipe or the up-pipes.

Product Features:

• Outflows Factory Exhaust Manifolds By 5%
• Improved Performance And Throttle Response
• Compatible w/Factory Up-Pipes Which Allows For Easy Install
• Matches The Flow On Driver/Passenger Side Manifold

Want to make sure your new exhaust manifold performs better and lasts longer than the original? No need to buy a replacement and get it specially coated. This manifold comes with a specialized ceramic coating that more evenly distributes heat, both helping to prevent thermal cracking as well as enabling smoother exhaust gas flow.

Product Features:

• Premium replacement – this exhaust manifold features a specialized ceramic coating designed to improve durability and performance on select vehicles
• Reduces future failures – by evenly distributing heat, coating reduces uneven hot and cold spots that lead to cracks, and decreases inconsistent expanding and contracting that leads to gasket failures
• Optimizes performance – made to smooth the interior manifold surface and keep heat within the manifold, leading to higher exhaust velocity and optimal operation
• Improves appearance – coating is highly corrosion-resistant, maintaining like-new appearance for years while other cast manifolds show significant unsightly rust

Want to make sure your new exhaust manifold performs better and lasts longer than the original? No need to buy a replacement and get it specially coated. This manifold comes with a specialized ceramic coating that more evenly distributes heat, both helping to prevent thermal cracking as well as enabling smoother exhaust gas flow.

Product Features:

• Premium replacement – this exhaust manifold features a specialized ceramic coating designed to improve durability and performance on select vehicles
• Reduces future failures – by evenly distributing heat, coating reduces uneven hot and cold spots that lead to cracks, and decreases inconsistent expanding and contracting that leads to gasket failures
• Optimizes performance – made to smooth the interior manifold surface and keep heat within the manifold, leading to higher exhaust velocity and optimal operation
• Improves appearance – coating is highly corrosion-resistant, maintaining like-new appearance for years while other cast manifolds show significant unsightly rust