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USD 439.99
Part #: AFE46-40032

AFE 46-40032 BladeRunner Ductile Iron Exhaust Manifold

1998.5-2002 Dodge 5.9L Cummins
Part #: AFE46-40032
★★★★★ ★★★★★ 4 Reviews
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Eliminate exhaust leaks from the old cracked manifold in your 1998.5-2002 Dodge 5.9L Cummins with the AFE 46-40032 BladeRunner Ductile Iron Exhaust Manifold. In testing, this exhaust manifold outflowed the factory exhaust manifold by 50% improving performance and throttle response.

One-Piece Construction:
This manifold is constructed of durable cast ductile iron with a reinforcing rib for maximum strength between the wall flanges at the ports.

Dual Auxiliary Ports:
Two Exhaust Gas Temperature (EGT) probe ports are supplied for easy installation of gauges or testing equipment.


  • Stock Sized Turbo Flange 
  • Machined Ports, Merged Runner Design 
  • Outflows Factory Exhaust Manifold By 50% 
  • Thicker Walled Design Eliminates Cracking
Note: Gaskets and replacement hardware not included. See items below.


  • MFG. Number 46-40032
  • Manufacturer Name AFE
  • Shipping Weight 22.00 lb.
  • Shipping Length 6 in.
  • Shipping Width 27 in.
  • Shipping Height 5 in.
  • Fuel Type Diesel
  • UPC 802959461235
  • Prop 65 WARNING: Cancer & Reproductive Harm -


Currently Viewing Reviews with a rating of 4. Click here to reset.
★★★★★ ★★★★★
4.8/5 Stars out of 4 Reviews
well worth the $265
(West melbourne) | May 28th, 2014
I just got my manifold in the mail yesterday and installed it right away..I was shorted 2 nuts for the turbo flange, and the instructions are absolutely horrible. Aside from those 2 issues the install went well, it fits great. I noticed 100-110 degree drop in EGTs, also cleaned up a bit of the top end smoke. Slight sound difference too. Overall I think it is well worth the money.

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Questions and Answers

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Most Popular Questions

Hardware question? Does it come with the gaskets?
View Staff Answer 

Parts Included:
Manifold, Exhaust (1)
Bracket, Coolant Line (1)
Channel Bracket, Coolant Line (1)
Screw , Hex: M8x1.25x25 (1)
Nut, Flange: M10x1.5 (8)
Stud: M10x1.5x50 (4)
Stud: M10x1.5x50 (2)
Plug, Hex: 1/8" NPT (2)

(Gaskets not supplied)

Is this a T4 flange?
View Staff Answer 

The AFE BladeRunner Exhaust Manifold 46-40032 is a T3 flange.

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.