Unleash torque and horsepower with this Twisted Steel series header for your 24 valve Cummins. 1-3/4" head pipes stepped to 2" mandrel bent 304 stainless steel tubing and a 1/2" laser cut T4 divided flange builds quicker turbo boost, improves throttle response and overall performance. TIG welded for strength and durability, this system allows for use of a larger turbo and is equipped with 1/8" EGT ports for auxiliary equipment.

1-3/4 to 2in x .120 Wall Stainless Steel:
A 1-3/4" head pipe stepped to 2" x .120 wall stainless steel tubing, is used to increase exhaust velocity and increase usable torque. This means a more aggressive throttle response and increased passing power.

TIG-Welded:
100% TIG-Welded by certified craftsmen provides the strongest welds reducing stress cracks for race proven strength and durability.

Divided T4 Flange:
This system utilizes a divided T4 flange that allows for a larger turbo and increase exhaust velocity, turbo spool, and boost.

Intergrated Turbocharger Brace
Turbocharger brace added to support turbo and take load off the header tubes.

Dual Auxiliary Ports:
Two exhaust gas temperature (EGT) probe ports are supplied for easy installation of gauges or testing equipment.

Hassle-Free Installation:
All necessary hardware and gasket are included for a hassle-free installation.

Emissions Disclaimer:
This product is not currently CARB exempt and is not available for purchase in California or for use on any vehicle registered with the California Department of Motor Vehicles.

All aFe headers are engineered and manufactured in our Corona, California manufacturing facility.