aFe Bladerunner Ductile Iron Manifolds Exhaust Dodge Diesel Trucks 03-07 L6-5.9L (td) aFe AFE46-40012
aFe Bladerunner Ductile Iron Manifolds Exhaust Dodge Diesel Trucks 03-07 L6-5.9L (td) aFe AFE46-40012
aFe Bladerunner Ductile Iron Manifolds Exhaust Dodge Diesel Trucks 03-07 L6-5.9L (td) aFe AFE46-40012
aFe Bladerunner Ductile Iron Manifolds Exhaust Dodge Diesel Trucks 03-07 L6-5.9L (td) aFe AFE46-40012
aFe Bladerunner Ductile Iron Manifolds Exhaust Dodge Diesel Trucks 03-07 L6-5.9L (td) aFe AFE46-40012
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aFe Bladerunner Ductile Iron Manifolds Exhaust Dodge Diesel Trucks 03-07 L6-5.9L (td)

aFe
AFE46-40012
802959461372
Headers & Manifolds
6 Units In Stock - Ships Next Business Day
$ 581.00
$ 581.00

SKU: 46-40012 | UPC: 802959461372

aFe BladeRunner Ported Ductile Iron Exhaust Manifold Dodge Ram 2500/3500 03-07 5.9L Cummins

The aFe BladeRunner exhaust manifold replaces factory units on 2003-2007 Dodge Ram 2500 and 3500 trucks with 5.9L Cummins diesel engines. Made from high-silicon molybdenum ductile iron this manifold outflows the stock unit by 23% to deliver quicker turbo spool-up improved throttle response and stronger performance across the powerband. Its ported design merged runners and thick walls prevent cracking and warping for long-term reliability.

Key Features

  • 23% Better Flow: Ported flanges and merged runner design reduce exhaust backpressure for noticeable gains in power and efficiency over stock.
  • Thick Wall Construction: 0.25-inch walls versus stock 0.15-inch provide extra strength to eliminate common factory manifold cracks and warping.
  • Dual EGT Ports: Two 1/8-inch NPT pre-threaded ports allow easy installation of exhaust gas temperature gauges for monitoring.
  • Precision Machined Ports: Matched ports ensure a tight seal with a clean appearance while optimizing exhaust evacuation.
  • Complete Kit: Includes six port gaskets and all necessary hardware for straightforward bolt-on installation.

Product Notes

  • Direct replacement for factory manifold with no modifications required.
  • High-silicon molybdenum ductile iron resists heat and corrosion for extended service life.
  • Ships in protective packaging to prevent damage during transit.

Installation Notes

  • Professional installation recommended.
  • Bolt-on design uses provided gaskets and hardware for easy replacement.
  • Compatible with factory turbocharger downpipe and exhaust system.

This Part Fits

Year Make Model Submodel
2003-2007 Dodge Ram 2500 5.9L Cummins Diesel (All Trims: Laramie SLT Sport ST TRX4)
2003-2007 Dodge Ram 3500 5.9L Cummins Diesel (All Trims: SLT Sport ST TRX4)

Why Choose aFe?

  • Engineered for Cummins diesel owners with proven flow-tested designs.
  • Cast in high-silicon ductile iron for heat resistance and durability.
  • Backed by dyno testing to confirm real-world performance gains.

Frequently Asked Questions

  • Q: Will this fit my 2004 Dodge Ram 2500 5.9L Cummins?
    A: Yes it fits all 2003-2007 Ram 2500 and 3500 models with the 5.9L Cummins L6 diesel engine regardless of cab or bed configuration.
  • Q: What material is the manifold made from?
    A: High-silicon molybdenum ductile iron casting for superior strength heat tolerance and resistance to cracking.
  • Q: Does it include everything needed for install?
    A: Yes includes six port gaskets and mounting hardware. Installation typically takes 2-4 hours with basic tools.

Shipping & Handling

  • Method: UPS Ground or FedEx
  • Availability: In stock - ships same or next business day
  • Packaging: Securely boxed 24 x 16 x 12 inches
  • Weight: 38 lbs
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