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USD 978.5
Part #: AFE48-32018

AFE 48-32018 Twisted Steel T4 Header

2003-2007 Dodge 5.9L Cummins (T4 Flange)
Part #: AFE48-32018
$ $978.50
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Unleash the potential of your 2003-2007 Dodge 5.9L Cummins with the AFE 48-32018 Twisted Steel T4 Header. Unlike all the other cast manifolds on the market, the Twisted Steel Header is constructed from 1-3/4" head pipes stepped to 2" x .120 wall mandrel-bent 304 stainless steel tubing for maximum flow. Featuring 1/2" flanges for a durability and a leak free seal, this header has a laser-cut T4 divided flange to allow you to step up to a larger aftermarket turbocharger. Each header is 100% TIG welded for strength and durability. Pre-drilled and tapped for 1/8" NPT ports. 

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.

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

Divided T-4 Flange
This system utilizes a divided diesel T-4 flange that allows for a larger turbo and increase exhaust velocity, turbo spool, and boost.

Brushed 304 SS Construction
Durable mandrel bent brushed 304 stainless steel tubing for maximum performance and corrosion resistant.

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 is included for a hassle-free installation.

  • Divided T4 Flange 
  • T304 Stainless Steel 
  • 100% TIG-Wleded Construction
  • Pre-Drilled & Tapped 1/8" NPT Ports 
  • 1/2" Thick Laser Cut Flanges For Durability 
Application Notes: 
Turbo gasket not included. 
This manifold has a T4 turbo flange and will not fit a stock turbocharger.


  • MFG. Number 48-32018
  • Manufacturer Name AFE
  • Shipping Weight 20.00 lb.
  • Shipping Length 29 in.
  • Shipping Width 17 in.
  • Shipping Height 7 in.
  • Fuel Type Diesel
  • UPC 802959482414
  • Prop 65 WARNING: Cancer & Reproductive Harm -


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Emissions Notice

This product is not legal for sale or street use in California. Certain aftermarket products are subject to governmental emission standards regulated by the California Air Resources Board. In order for these products to be legal on a specific vehicle in California, the part number must receive a CARB Executive Order (EO) number. This number makes the part legal for use only on specific years, makes and models of vehicles. A decal with CARB EO number for these parts must be displayed in the engine bay to satisfy smog inspection requirements.