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Part #: AFE48-34009-PK

AFE 48-34009-PK Twisted Steel Up-Pipes & Exhaust Manifolds

2001-2004 GM 6.6L Duramax LB7
Part #: AFE48-34009-PK
$978.49 $ $880.64
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The AFE 48-34009-PK Twisted Steel Up-Pipes & Exhaust Manifolds enhance performance, and flow in your 2001-2004 GM 6.6L Duramax. This combo kit includes AFE's Twisted Steel Up-Pipes and BladeRunner Exhaust Manifolds. Replace the old, cracked, or leaking up-pipes and eliminate the pinch in the factory exhaust manifold with this all-in-one kit. 

These unique up pipes are constructed of 2" mandrel-bent 304 stainless steel tubing with a .120" wall for strength and durability.

2" Inner Liner Flex Pipes:
The down-pipes utilizes heavy duty 2" flex tubes with internal inner liner.

Leak-Free Seal:
High quality 3/8" thick flanges are used for a complete 360 degree sealing surface.

Machined Ports:
These manifolds have both the inlet and the outlet ports machined to match the factory gaskets. This allows for maximum flow, without compromising gasket performance.

Auxiliary Ports:
An Exhaust Gas Temperature (EGT) probe port is incorporated into each manifold for easy installation of gauges or testing equipment. There are three additional cast in bosses provided to allow for alternate testing points.

Hassle-Free Installation:
These manifolds are compatible with the stock up-pipes, which allows the manifolds to be installed without having to remove the turbocharger down-pipe or the up-pipes.


  • Durable, Ductile Cast Iron Manifolds
  • Outflows Factory Exhaust Manifolds By 6%
  • Pre-Drilled & Tapped 1/8" NPT Ports In Manifold
  • Eliminates Restricting Pinch Of Factory Driver-Side Manifold


  • MFG. Number 48-34009-PK
  • Manufacturer Name AFE
  • Shipping Weight 39.00 lb.
  • Shipping Length 29 in.
  • Shipping Width 17 in.
  • Shipping Height 17 in.
  • UPC 802959482100
  • 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.