Description
Large Bore-HD 5-Inch 409 Stainless Steel DPF-Back Exhaust System
Built for heavy-duty performance and durability, the Large Bore-HD 5-Inch DPF-Back Exhaust System from aFe POWER is engineered to handle the demands of modern Duramax diesel trucks. Featuring 5-inch mandrel-bent 409 stainless steel tubing, this exhaust system improves exhaust flow while delivering exceptional strength, corrosion resistance, and long-term reliability.
Designed using advanced computer-aided engineering, this system offers precise factory-style fitment while maintaining a clean, aggressive appearance with a large-diameter black exhaust tip. Manufactured in the USA, it is a premium upgrade for drivers seeking durability, improved exhaust efficiency, and bold styling.
Key Features & Benefits
Heavy-Duty 5-Inch Stainless Steel Construction
Constructed from 5-inch mandrel-bent 409 stainless steel tubing, this DPF-back exhaust system delivers maximum strength and durability. The large-diameter tubing promotes smooth exhaust flow with minimal restriction, making it ideal for high-output diesel applications.
6-Inch Black Intercooled Exhaust Tip
Completing the system is a 6-inch diameter black 304 stainless steel intercooled clamp-on exhaust tip, featuring a riveted aFe POWER logo plate for a distinctive, aggressive finish. The oversized tip enhances rear-end appearance while maintaining durability and corrosion resistance.
OE-Style Fitment and Mounting
The system utilizes factory-style hangers and mounts directly to OEM mounting locations, ensuring a secure fit and proper exhaust alignment under all driving conditions.
Precision Computer-Aided Design
Using state-of-the-art CAD technology, this exhaust system is engineered for high-tolerance factory fitment, allowing for consistent installation quality and optimal component alignment.
100% MIG-Welded Construction
Every component is fully MIG-welded for race-proven strength and long-term durability, ensuring reliability in demanding towing, hauling, and high-temperature environments.
Installation Information
This DPF-back exhaust system includes all required hardware for installation. Some cutting is required—please refer to the instruction sheet for complete installation details.
Wheelbase Compatibility
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Double Cab / Short Bed – 149.4" Wheelbase
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Crew Cab / Short Bed – 158.9" Wheelbase
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Double Cab / Long Bed – 162.4" Wheelbase
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Crew Cab / Long Bed – 172" Wheelbase
Additional Information
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Emissions Compliance: Does not require a CARB EO number
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Manufacturing: Engineered and manufactured in Corona, California, USA
Vehicle Fitment
Chevrolet
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2020–2023 Silverado 2500 HD | 6.6L Duramax Diesel
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2020–2023 Silverado 3500 HD | 6.6L Duramax Diesel
GMC
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2020–2023 Sierra 2500 HD | 6.6L Duramax Diesel
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2020–2023 Sierra 3500 HD | 6.6L Duramax Diesel
Upgrade your heavy-duty Duramax truck with the Large Bore-HD 5-Inch DPF-Back Exhaust System for maximum strength, precision fitment, and aggressive diesel styling.
