Description
Large Bore-HD 3-Inch 409 Stainless Steel DPF-Back Exhaust System with Polished Tip
The Large Bore-HD 3-Inch DPF-Back Exhaust System from aFe POWER is engineered to improve durability, exhaust efficiency, and overall refinement for late-model Duramax diesel trucks. Constructed from mandrel-bent 409 stainless steel, this system delivers long-term strength and corrosion resistance while maintaining a mild, refined exhaust tone suitable for daily driving and towing.
Designed using advanced computer-aided engineering, this exhaust system provides precision fitment and OE-style mounting, finishing the rear of the truck with a polished stainless steel exhaust tip for a clean, performance-focused appearance.
Key Features & Benefits
Heavy-Duty 3-Inch Stainless Steel Construction
Built from 3-inch mandrel-bent 409 stainless steel tubing, this DPF-back exhaust system ensures smooth exhaust flow, reduced restriction, and long-lasting durability.
4.5-Inch Polished Stainless Steel Exhaust Tip
The system is finished with a 4.5-inch diameter polished 304 stainless steel clamp-on exhaust tip, featuring a laser-etched aFe POWER logo for a refined, OEM-plus look.
Mild Performance Sound
Designed to deliver a mild exhaust note, this system enhances airflow and performance without excessive noise—ideal for commuting, long-distance driving, and towing applications.
OE-Style Fitment and Mounting
Factory-style hangers provide secure installation and proper exhaust alignment, maintaining stability under vibration and heat.
Precision Computer-Aided Design
State-of-the-art CAD engineering ensures high-tolerance, vehicle-specific fitment for a clean installation and factory-quality appearance.
100% MIG-Welded Construction
All components are fully MIG-welded for race-proven strength, reliability, and long service life.
Installation Information
This DPF-back exhaust system mounts directly to factory locations using OE-style hangers. Some cutting may be required—please refer to the instruction sheet for complete installation details.
Additional Information
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Emissions: 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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2023–2025 Silverado 1500 | 3.0L Duramax Diesel (L6)
GMC
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2023–2025 Sierra 1500 | 3.0L Duramax Diesel (L6)
Upgrade your diesel truck with the Large Bore-HD 3-Inch DPF-Back Exhaust System with Polished Tip for durable stainless construction, refined sound, and precise OE-style fitment.
