MBRP Armor Plus Quiet Tone Diesel Muffler M1004S, 4-Inch Inlet and Outlet, T409 Stainless Steel

Our high flow performance exhaust systems maximize exhaust flow so your engine keeps its cool with lower exhaust temperatures. Your reward will be greater fuel efficiency; more torque; more horsepower; and last but not least a sound that is pure MBRP. Armor Plus Quiet Tone Diesel Muffler; Round; 4 in. Inlet/Outlet; Body L-24 in.; Overall L-30 in.; Diameter-6 in.; T409 Stainless Steel; 4.5 in. Outlet Diameter Tip; Quiet Tone Diesel Muffler, T409 Stainless Steel.

• Dual Core Technology for Optimal Flow. Perfect for On-Road Towing Applications as Cab Noise Is Greatly Reduced.
• Quiet Tone Diesel Muffler

The MBRP Armor Plus Quiet Tone Diesel Muffler, part number M1004S, is a universal performance exhaust component designed to improve exhaust flow while reducing unwanted cab noise. Its dual-core construction supports efficient exhaust movement, helping maintain lower exhaust temperatures and promoting improved towing performance, fuel efficiency, torque, and horsepower. The muffler also delivers the clean, controlled sound associated with MBRP exhaust systems.

Built from durable T409 stainless steel, the MBRP M1004S is engineered for demanding on-road towing applications. The quiet-tone design helps reduce interior exhaust noise without unnecessarily restricting flow, making it a practical choice for diesel trucks that require both performance and improved driving comfort. Its round body and 4-inch inlet and outlet configuration allow installation in compatible custom or replacement exhaust systems.

This universal muffler includes a 4.5-inch outlet diameter tip and is intended for applications where the exhaust system is configured to accept the listed inlet and outlet size. Professional installation is recommended to verify clearance, connection points, and compatibility with the vehicle’s existing exhaust components. No vehicle-specific fitment information was provided; confirm application requirements before ordering.

What’s Included: One MBRP Armor Plus Quiet Tone Diesel Muffler with integrated outlet tip.

Features:

• Dual-core technology: Supports optimal exhaust flow while helping reduce cab noise.
• Quiet-tone design: Provides a more controlled exhaust sound for improved on-road towing comfort.
• T409 stainless steel construction: Delivers durable corrosion resistance for demanding automotive use.
• Universal performance fit: Uses a 4-inch inlet and outlet configuration for compatible custom and replacement exhaust systems.

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1