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The new Large Bore HD exhaust is engineered to perform in the most extreme environments. This system is constructed from mandrel-bent 4" stainless steel tubing for maximum flow, increased horsepower, increased torque and lower EGT. This system is available in 4" cat-back with muffler. Large Bore HD exhaust systems are the perfect combination of performance, fit, and value.

Installation is a Snap:
All systems use factory mounting locations providing stability and hassle-free installation.

Leak-Free Seal:
High quality OE style flange and band clamps are used for a complete 360-degree sealing surface.

Aggressive Sound:
A free-flowing 24" long 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.

*Fits 2006-2007 LLY & LBZ Duramax

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AFE Aluminium Large Bore Cat Back Exhaust Chevy/GMC

  • Brand: AFE
  • Product Code: 49-14002
  • Availability: In Stock
  • $445.00