MBRP 4-Inch DPF-Back Exhaust Single Side Exit Armor Pro 6.6L Duramax Diesel 2020-2026 Chevy Silverado 2500 HD/3500 HD; 2020-2026 GMC Sierra 2500 HD/3500 HD
Couldn't load pickup availability
Before ordering, verify your vehicle details, current setup, and SKU with OFAS fitment support so your upgrade matches your build.
Shipping & Delivery
Free shipping is available within the lower 48 U.S. states. Large or heavy items may ship by freight, and delivery timing can vary by warehouse, carrier, and product availability.
Fitment, Shipping & Product Support
Free Shipping. Verified fitment for 2020-2026 GMC Sierra 3500 HD; 2020-2026 GMC Sierra 2500 HD; 2020-2026 Chevy Silverado 2500 HD; 2020-2026 Chevy Silverado 3500 HD. Orders Placed By 1PM CST Get Shipped Same Day. This MBRP filter back is built for buyers who want a direct-fit change in exhaust flow, tone, and durability without gambling on generic universal hardware.
Overview
This exhaust pipe uses a vehicle-specific layout with T304 Stainless Steel, 4.0 inch sizing, and a single outlet configuration. It is well-suited to towing, heavy-load use, and long service intervals where durable tubing and lower restriction matter. This fitment profile ties the part to 6.6 Liter Diesel vehicles, which matters because sound, flow demand, and packaging change with engine and fuel type.
Key Features
- Configuration: Filter Back — defines where the system starts and how much of the factory exhaust it replaces
- Material: T304 Stainless Steel — important for corrosion resistance, heat-cycle durability, and long-term service life
- Tubing Size: 4.0 inch — relevant to flow capacity, sound character, and the balance between response and drivability
- Series: Armor Pro — useful when comparing entry-value construction against longer-life stainless options inside the MBRP range
- Finish: Stainless — matters for surface durability and how the system holds appearance over time
- Outlet: Single — changes rear appearance, exit strategy, and how sound leaves the truck or SUV
- Engine Match: 6.6 Liter Diesel — keeps the part anchored to the intended powertrain instead of a generic application list
- Warranty: Lifetime Warranty — useful for understanding long-term ownership coverage
Engineering Notes
Pipe and downpipe sections matter because routing, bend quality, and material directly affect flow, heat management, and how cleanly the exhaust path fits the chassis. On heavy-duty truck platforms, the value is in flow stability under load, corrosion resistance through work-truck use, and a tone profile that remains usable during towing, highway miles, and long service intervals. Cab, bed, and wheelbase differences also matter because they change routing and cabin resonance.
Important Notes
- Review the installation instructions before ordering to confirm hardware, routing, and whether any cutting or adaptation is required.
- This product includes a California Proposition 65 warning.
Verified Fitment
2020-2026 GMC Sierra 3500 HD; 2020-2026 GMC Sierra 2500 HD; 2020-2026 Chevy Silverado 2500 HD; 2020-2026 Chevy Silverado 3500 HD