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aFe Large Bore Exhaust Systems - 01-07 Duramax

Thoroughbred Sku #: AFE0107GMLGBOREEXHAUST

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Product Details

Product Name: Large Bore Exhaust Systems
Manufacturer: aFe Power
Application: 2001-2007 GM Duramax

The Large Bore-HD exhaust is designed for ease of installation and engineered to perform in the most extreme environments. This system is constructed from 4" mandrel bent 409 stainless steel tubing for 29% more flow that results in increases of up to 15 horsepower and up to 31 lbs. x ft. of while lowering EGT's. Systems are available in 4" turbo-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.


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