Description
The MBRP ARMOR Pro Series 4-Inch Cat-Back Exhaust is engineered for 2020–2026 Chevrolet Silverado and GMC Sierra 2500HD and 3500HD trucks equipped with the 6.6L Duramax diesel engine. Designed as a DPF-back system, this exhaust improves exhaust flow while maintaining emissions-related components.
Constructed from premium mirror-polished T304 stainless steel, this system delivers exceptional corrosion resistance, long-term durability, and a clean performance appearance. The 4-inch mandrel-bent tubing ensures consistent diameter throughout the system for optimal exhaust flow and efficiency.
This system features a single side exit and includes a dual-wall, straight-cut exhaust tip with a 5-inch outlet. The dual-wall design provides the appearance of a thick single wall while reducing heat transfer to surrounding body panels. The Tour Profile offers a refined exhaust tone suitable for daily driving without excessive cabin drone.
Backed by MBRP’s lifetime warranty, the ARMOR Pro Series exhaust is built for truck owners who demand performance, durability, and premium materials.
Key Features
• 4-Inch Mandrel-Bent Tubing
• DPF-Back Exhaust Design
• ARMOR Pro Series
• T304 Stainless Steel Construction
• Single Side Exit Configuration
• Tour Profile Exhaust Tone
• Dual-Wall Straight-Cut Exhaust Tip
• 5-Inch Outlet Tip
• Lifetime Warranty
Exhaust Tip Details
• Material: T304 Stainless Steel
• Finish: Mirror Polished
• Design: Dual Wall, Straight Cut
• Outlet Size: 5 Inches
• Heat-Resistant Design to Protect Body Panels
Technical Specifications
• Part Number: S6059304
• Part Type: Exhaust
• Exhaust Type: Cat-Back
• System Configuration: DPF-Back
• Tubing Diameter: 4 Inches
• Series: ARMOR Pro
• Material: T304 Stainless Steel
• Fuel Type: Diesel
Vehicle Fitment
• 2020 Chevrolet Silverado 2500HD 6.6L Duramax
• 2021 Chevrolet Silverado 2500HD 6.6L Duramax
• 2022 Chevrolet Silverado 2500HD 6.6L Duramax
• 2023 Chevrolet Silverado 2500HD 6.6L Duramax
• 2024 Chevrolet Silverado 2500HD 6.6L Duramax
• 2025 Chevrolet Silverado 2500HD 6.6L Duramax
• 2026 Chevrolet Silverado 2500HD 6.6L Duramax
• 2020 Chevrolet Silverado 3500HD 6.6L Duramax
• 2021 Chevrolet Silverado 3500HD 6.6L Duramax
• 2022 Chevrolet Silverado 3500HD 6.6L Duramax
• 2023 Chevrolet Silverado 3500HD 6.6L Duramax
• 2024 Chevrolet Silverado 3500HD 6.6L Duramax
• 2025 Chevrolet Silverado 3500HD 6.6L Duramax
• 2026 Chevrolet Silverado 3500HD 6.6L Duramax
• 2020 GMC Sierra 2500HD 6.6L Duramax
• 2021 GMC Sierra 2500HD 6.6L Duramax
• 2022 GMC Sierra 2500HD 6.6L Duramax
• 2023 GMC Sierra 2500HD 6.6L Duramax
• 2024 GMC Sierra 2500HD 6.6L Duramax
• 2025 GMC Sierra 2500HD 6.6L Duramax
• 2026 GMC Sierra 2500HD 6.6L Duramax
• 2020 GMC Sierra 3500HD 6.6L Duramax
• 2021 GMC Sierra 3500HD 6.6L Duramax
• 2022 GMC Sierra 3500HD 6.6L Duramax
• 2023 GMC Sierra 3500HD 6.6L Duramax
• 2024 GMC Sierra 3500HD 6.6L Duramax
• 2025 GMC Sierra 3500HD 6.6L Duramax
• 2026 GMC Sierra 3500HD 6.6L Duramax
• Engine: 6.6L Duramax Diesel Only
• Cab Configuration: Extended Cab and Crew Cab Only
Engineered for strength, performance, and longevity, the MBRP ARMOR Pro Series 4-inch Cat-Back Exhaust is the ideal upgrade for Duramax owners seeking premium materials, refined sound, and dependable long-term durability.
