The aFe Twisted Steel 1-7/8in 304 Stainless Steel Headers are a high-performance exhaust upgrade designed for the 2020–2021 Ford F-250 and F-350 trucks equipped with the V8 7.3L engine. Constructed from mandrel-bent 1-7/8-inch 304 stainless steel tubing, these headers offer exceptional strength and corrosion resistance. Featuring factory-style laser-cut machined flanges, they ensure a secure, leak-free seal. The 4-to-1 mitered merge collectors reduce turbulence and increase exhaust velocity, resulting in gains of up to 18 horsepower and 25 lb-ft of torque, as verified on aFe’s in-house dyno. This design enhances throttle response and overall engine efficiency while maintaining durability under demanding conditions.
These headers are engineered as a direct replacement for the factory exhaust manifolds on 2020–2021 Ford F-250 and F-350 trucks with the 7.3L V8 engine. Installation is straightforward with bolt-on compatibility, utilizing existing mounting points and hardware. Ideal for street and light-duty performance applications, these headers improve exhaust flow without compromising reliability. The system is designed to integrate seamlessly with factory-style components, ensuring compatibility with stock exhaust setups. This upgrade is perfect for enthusiasts seeking increased power and improved engine responsiveness in their heavy-duty Ford trucks.
