Description
Large Bore-HD 5" 409 Stainless Steel DPF-Back Exhaust System
Elevate your diesel truck’s performance with the aFe Power Large Bore-HD 5" DPF-Back Exhaust System, engineered for durability, optimal flow, and aggressive styling. Designed for 2017–2019 Chevrolet Silverado 2500/3500 HD and GMC Sierra 2500/3500 HD Diesel trucks with 6.6L Duramax engines, this exhaust system delivers superior exhaust flow, increased horsepower and torque, and reduced EGTs.
Premium Construction:
Crafted from 5" mandrel-bent 409 stainless steel tubing, this exhaust system ensures maximum durability and smooth flow with minimal turbulence. The included high-quality band clamps and OE-style bayonet hangers guarantee a secure, leak-free fitment using all factory mounting locations for a straightforward installation.
Precision Fit and OE Reliability:
All systems maintain the original factory mounting points, providing stable placement during high vibration and heat conditions. The OE-style bayonet hangers secure the pipe location, preserving an authentic OE fit that stands the test of time.
Performance-Oriented Design:
Smooth transition bends optimize exhaust flow to enhance horsepower and torque while lowering exhaust gas temperatures (EGTs). The large-bore design ensures minimal backpressure, supporting peak engine performance.
Aggressive Styling with 6" Polished Tip:
The exhaust finishes with a 6" diameter, polished stainless steel slash-cut intercooled tip. Strategically designed vents reduce exhaust temperatures at the tailpipe, while a laser-cut, powder-coated black aFe Power logo plate adds a bold, performance-inspired aesthetic.
Application and Fitment:
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Crew Cab / Short Bed: 6.6 ft Bed, 153.7" Wheelbase
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Crew Cab / Long Bed: 8 ft Bed, 167.7" Wheelbase
Installation Note:
Cutting the stock exhaust behind the DPF is required for all cab configurations. Refer to the included instruction sheet for exact cut locations.
Emissions Information:
This system does not require a CARB EO# and is compliant for off-road and performance applications.
Made in the USA:
All aFe exhaust systems are engineered and manufactured in our Corona, California facility for superior quality and reliability.
Compatible Vehicles:
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2017–2019 Chevrolet Silverado 2500 HD Diesel V8-6.6L Duramax
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2017–2019 Chevrolet Silverado 3500 HD Diesel V8-6.6L Duramax
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2017–2019 GMC Sierra 2500 HD Diesel V8-6.6L Duramax
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2017–2019 GMC Sierra 3500 HD Diesel V8-6.6L Duramax
