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Part #:

AFE 49-02003 ATLAS 4" Turbo-Back Exhaust System

2004.5-2009 Dodge 5.9L/6.7L Cummins (All Cabs & Beds)
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The AFE 49-02003 ATLAS 4" Turbo-Back Exhaust System for your 2004.5-2009 Dodge 5.9L/6.7L Cummins is engineered to perform in the most extreme environments. This system is constructed from precision, mandrel bent 4 aluminized steel tubing for maximum flow, increased horsepower, increased torque and lower EGTs. The 2-piece tailpipe and bayonet style hangers provide a hassle-free installation. To provide a leak-free seal, OE style band clamps are used that offer a 360º sealing area vs. cheap U-bolt clamps used in other systems. A 12" free-flowing straight-through designed muffler is used to produce a deep, powerful sound. Systems are available in 4 turbo back or 4 down pipe back with or without muffler. ATLAS exhaust systems are the perfect combination of performance, fit and value

Installation is a Snap:
ATLAS exhaust systems utilize a 2-piece tailpipe design for a perfect fit by allowing adjustability at the tailpipe section. All systems use factory mounting locations providing stability and hassle-free installation.

Leak-Free Seal:
High quality OE style band clamps are used for a complete 360º sealing surface. Standard U-bolt clamps used by other systems only seal at the bottom and top of the tube allowing leak paths.

Aggressive Sound:
A free-flowing 12" wide muffler is used to absorb high pitch tones producing a powerful sound and unleashing all available horsepower and torque out of your rig.

Perfect Fit:
OE style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The Bayonet tip holds the hanger bushing in place for an OE style fit that does not change with time.

Flow and Performance:
ATLAS exhaust systems are constructed of precision, mandrel bent 4" aluminized steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGTs.


  • Fits Both 5.9L & 6.7L Cummins 
  • Aluminized Steel Construction
  • 4" Turbo-Back

System Options
With Muffler 49-02003
Without Muffler 49-02003NM

Warning: This free-flow race exhaust system requires the use of an aftermarket performance programmer with off-road tuning.

Product Options

49-02003NM No Muffler


  • Manufacturer Name AFE
  • Shipping Weight 80.00 lb.
  • Shipping Length 48 in.
  • Shipping Width 13 in.
  • Shipping Height 23 in.
  • UPC 802959490945
  • Warranty Yes
  • Warranty Info 2 Year
  • Prop 65 WARNING: Cancer & Reproductive Harm -


Awesome sound
Location: Florida
I went with the muffler option because I think a straight piped 5.9 just doesn't sound good under throttle. This system sounds great. Not much louder than stock at idle, much deeper, throatier tone. Once you put the pedal down this pipe will turn heads without that annoying straight pipe sound. Definitely recommend

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Questions and Answers

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Most Popular Questions

Will this exhaust fit on a 2008 6.7L Mega Cab?
View Staff Answer 

2004.5-2009 Dodge 5.9L/6.7L Cummins all wheelbases except Cab & Chassis.

will this exhaust fit 2008 cab &chassis short bed 4x4
View Staff Answer 
No, this system will not work on Cab & Chassis trucks
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.