Designed to offer maximum performance and a deep aggressive exhaust tone, the aFe Large Bore-HD exhaust system is for users wanting uncompromised performance and sound. The aFe Large Bore-HD exhaust system features smooth mandrel bends and large oversized pipes for maximum flow and optimum efficiency. Each exhaust system is constructed from high quality stainless steel for added performance and durability. High grade OE style 360 degree band clamps are included with every kit for an air tight seal and ensured performance. The aFe Large Bore-HD exhaust system uses factory mounting locations for easy and hassle-free installation. Extreme durability, optimum performance, and high quality design have made aFe Large Bore-HD exhaust systems perfect for users wanting premium quality, first-rate performance, and aggressive exhaust sound. All aFe exhaust systems are proudly made in the U.S.A.
Interested in a new exhaust system for your LML Duramax? Check out the Large Bore-HD DPF-Back exhaust system by aFe. This system is constructed from 5" mandrel-bent 409 stainless steel tubing and uses high quality band clamps and OE-style bayonet hangers. This unit uses all factory mounting locations to provide a quick, hassle-free installation. Also included in this exhaust system is a massive 6" wrinkle-black powder-coated 304 stainless steel tip with a laser-cut stainless steel aFe power badge. Large Bore-HD exhaust systems are the perfect combination of performance, fit and value.
Simple Installation:
All systems use factory mounting locations providing stability and hassle-free installation.
Leak-Free Seal:
High quality band clamps are included for a complete 360 degree sealing surface.
OE 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:
This Large Bore-HD exhaust system is constructed of 5" mandrel-bent stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT's.
6" Diameter Black Intercooled Tip:
Finishing off the exhaust is a 6" diameter, black, stainless steel slash cut tip with intercooling vents designed to reduce exhaust gas temperatures at the tailpipe. A unique stainless steel laser-cut aFe Power logo plate is riveted on for an aggressive style.
This System Fits:
Extended Cab/Short Bed, 6.6ft Bed, 143.5" Wheelbase
Crew Cab/Short Bed, 6.6ft Bed, 153.7" Wheelbase
Extended Cab/Long Bed, 8ft Bed, 158.1" Wheelbase
Crew Cab/Long Bed, 8ft Bed, 167.7" Wheelbase
Note: Cutting is required for some cab configurations.
Emissions Disclaimer:
This product does not require a CARB EO# (CARB Aftermarket Parts Verification Guidelines).
All aFe exhaust systems are engineered and manufactured in our Corona, California facility.
Professional installation required.
| Brand | aFe Power |
|---|---|
| Part Number | AFE-49-44081-B |
| Shipping Method | UPS/FedEx/USPS Ground |
| Availability | Normally ships in ~1-2 business days. |
| California Prop 65 Warning |
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This product can expose you to chemicals that are known to the State of California to cause cancer and birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov