Description
Transform your 2016 Chevrolet Silverado or GMC Sierra Duramax with the Large Bore-HD 4" 409 Stainless Steel DPF-Back Exhaust System by aFe Power. Engineered for maximum flow, aggressive style, and precision fit, this system delivers the ultimate combination of performance, durability, and convenience.
Premium 409 Stainless Steel Construction
Built from 4" mandrel-bent 409 stainless steel tubing, the Large Bore-HD exhaust ensures optimal airflow and minimal turbulence, increasing horsepower, torque, and reducing EGTs. The smooth transition bends and mitered merge collector allow for superior exhaust efficiency while maintaining structural integrity under extreme conditions.
Dual Rear Side Exit with Aggressive Style
This dual DPF-back exhaust system features massive 6" powder-coated high-temperature black stainless steel tips, each accented with a laser-cut aFe Power badge. A bolt-on support bracket for the driver-side tailpipe and OE-style bayonet hangers ensure stable positioning even under high vibration and heat, delivering a clean and professional installation.
Quick & Hassle-Free Installation
Designed to use all factory mounting points, this system provides a bolt-on installation with minimal effort. It fits perfectly with the spare tire in place and requires no modifications for most cab and bed configurations, making it a true plug-and-play solution.
Single-to-Dual Conversion
Upgrade from a standard single exhaust to a commanding dual-exit setup with improved flow and an aggressive rear-end appearance, giving your Duramax both style and performance.
Compatibility
Engineered to fit:
-
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 may be required for some cab configurations.
Emissions & Compliance
This product does not require a CARB EO#, making it compliant for sale in most regions.
Made in the USA
All aFe exhaust systems are engineered and manufactured at the Corona, California facility, ensuring high-quality craftsmanship and long-lasting durability.
Upgrade your Duramax with the Large Bore-HD 4" 409 Stainless Steel DPF-Back Exhaust System—perfect for enthusiasts seeking performance, style, and reliability.
