AFE ATLAS Aluminzed Exhaust System 49-04001 (Downpipe-Back)
2001-2007 GM 6.6L Duramax LB7/LLY/LBZ
The new ATLAS exhaust 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 EGT’s. 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:
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.
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.
12" wide muffler is used to absorb high pitch tones producing a powerful
sound and unleashing all available horsepower and torque out of your
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:
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 EGT’s.
With Muffler 49-04001
Without Muffler 49-04001NM
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