aFe BladeRunner Ported Ductile Iron Exhaust Manifold 46-40012 for 2003-2007 Dodge Ram 5.9L Diesel

aFe Power is pleased to announce the release of the new ductile iron BladeRunner exhaust manifold for the 03-07 Dodge RAM Diesel Trucks L6-5.9L (td). In recent testing, this exhaust manifold outflowed the factory exhaust manifold by 23%, improving performance and throttle response. The thick wall (0.25" vs. 0.15") flange design increases strength, eliminating warping and cracking prevalent in the factory exhaust manifolds. The matched ports and merged runner design reduces exhaust backpressure, maximizing exhaust flow. Once you install this awesome exhaust manifold, you will feel quicker turbo spool up times, improved throttle response and increased performance.? Along with the exhaust manifold for the 03-07 Dodge RAM (P/N: 46-40012), we want to remind you of the availability of ductile iron exhaust manifolds for the 98.5-02 Dodge RAM Diesel (P/N: 46-40032) and 94-98 Dodge RAM Diesel (P/N: 46-40042). BladeRunner Ported Ductile Iron Exhaust Manifold Dodge Diesel Trucks 03-07 L6-5.9L (td) Hassle-Free install; Hardware Included, Except Gaskets; No Cutting or Welding on OEM parts; Ductile Iron; One-Piece Construction; Dual Auxiliary Ports; BladeRunner; Reduces Exhaust Backpressure; Quicker Turbo Spool Up; Improves Performance & Throttle Response

• Thick Wall Design Increases Strength Eliminating Warping/Cracking
• Machines Ports and Merged Runner Design Reduces Exh. Backpressure
• Dual 1/8 in. NPT Exh. Gas Temp Ports Are Supplied For Gauges
• Ported Flanges Ensure Excellent Seal And Stylist Look
• Improved Performance And Throttle Response
• Outflows The Factory Manifold By 23%
• 6 Port Gaskets and Hardware Included

Upgrade the exhaust system on your 2003-2007 Dodge Ram diesel truck with the aFe BladeRunner Ported Ductile Iron Exhaust Manifold, Part Number 46-40012. Designed for vehicles equipped with the 5.9L inline-six turbo diesel engine, this one-piece manifold is engineered to improve exhaust flow, turbocharger response, and overall engine performance. In testing, the BladeRunner manifold outflowed the factory manifold by 23 percent, helping reduce exhaust backpressure and promote quicker turbo spool-up.

The heavy-duty ductile iron construction uses a thick-wall flange design that is approximately 0.25 inch thick compared with the factory manifold's approximately 0.15-inch flange. This added material increases strength and helps resist the warping and cracking commonly associated with original equipment manifolds. Precisely machined ports and a merged runner design support smooth exhaust flow, while ported flanges help provide a reliable seal and clean installation. Dual auxiliary 1/8-inch NPT exhaust gas temperature ports are included for gauge installation.

The aFe BladeRunner 46-40012 is designed as a hassle-free replacement with no cutting or welding required on factory components. Installation hardware and six port gaskets are included, while exhaust manifold gaskets are not included. This manifold fits select 2003-2007 Dodge Ram 2500 and 3500 trucks with the 5.9L turbo diesel engine. Verify vehicle application before ordering. This product is EPA compliant and carries CARB Executive Order D-550-39 where applicable; review local emissions requirements before installation.

Features:

• Ductile Iron Construction: Provides durable, high-strength performance for demanding diesel applications.
• Thick-Wall Flange Design: Helps resist warping and cracking compared with the thinner factory flange.
• Improved Exhaust Flow: Ported passages and a merged runner design reduce exhaust backpressure.
• Enhanced Turbo Response: Supports quicker turbo spool-up, improved throttle response, and increased performance.
• 23 Percent Greater Flow: Outflows the factory exhaust manifold by 23 percent in testing.
• Dual Temperature Sensor Ports: Includes two 1/8-inch NPT ports for exhaust gas temperature gauges.
• One-Piece Replacement Design: Installs without cutting or welding original equipment components.
• Installation Hardware Included: Includes mounting hardware and six port gaskets; exhaust manifold gaskets are not included.

Fitments:
2003 Dodge Ram 2500 Laramie
2003 Dodge Ram 2500 SLT
2003 Dodge Ram 2500 ST
2003 Dodge Ram 3500 Laramie
2003 Dodge Ram 3500 SLT
2003 Dodge Ram 3500 ST
2004 Dodge Ram 2500 SLT
2004 Dodge Ram 2500 ST
2004 Dodge Ram 3500 Laramie
2004 Dodge Ram 3500 SLT
2004 Dodge Ram 3500 ST
2005 Dodge Ram 2500 Laramie
2005 Dodge Ram 2500 SLT
2005 Dodge Ram 2500 ST
2005 Dodge Ram 3500 Laramie
2005 Dodge Ram 3500 SLT
2005 Dodge Ram 3500 ST
2006 Dodge Ram 2500 Laramie
2006 Dodge Ram 2500 SLT
2006 Dodge Ram 2500 Sport
2006 Dodge Ram 2500 ST
2006 Dodge Ram 2500 TRX4
2006 Dodge Ram 3500 Laramie
2006 Dodge Ram 3500 SLT
2006 Dodge Ram 3500 Sport
2006 Dodge Ram 3500 ST
2007 Dodge Ram 2500 Laramie
2007 Dodge Ram 2500 SLT
2007 Dodge Ram 2500 Sport
2007 Dodge Ram 2500 ST
2007 Dodge Ram 2500 TRX4
2007 Dodge Ram 3500 Laramie
2007 Dodge Ram 3500 SLT
2007 Dodge Ram 3500 Sport
2007 Dodge Ram 3500 ST
2007 Dodge Ram 3500 TRX4

Air Freight Prohibited: false
Not Carb Approved: false
Carb Eo Number: D-550-39
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: Compliant
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1