MBRP GP015 Armor Lite 4" High Flow Muffler 30" Length for Universal Diesel Truck

Vehicle Fitment

• Universal fitment; 4in single in/single out exhaust systems
• Commonly used on Ram Cummins, Ford Power Stroke, and GM Duramax 4in turbo-back diesel systems

Fitment Notes

• Requires 4in tubing and 30in overall muffler space
• Sold individually
• Measure available space and pipe size before ordering

Features

• 16-gauge aluminized steel construction
• Fully coated, including seams
• Mandrel bent for smooth, wrinkle-free flow
• Deburred for a clean, precise fit
• Louvered tube with fiberglass packing
• Maximizes exhaust flow, lowers exhaust temperatures
• Classic MBRP tone
• Hangers weld on as needed

Specifications

• Material: 16-gauge aluminized steel (Armor Lite)
• Inlet diameter: 4in, center
• Outlet diameter: 4in, center
• Overall length: 30in
• Body length: 24in
• Body diameter: 6in
• Case shape: Round
• Internal construction: Louvered tube, fiberglass packing

Included Components

• 1x High flow muffler

Product Description

The MBRP GP015 is a universal 4-inch Armor Lite high flow muffler, built from 16-gauge aluminized steel that's fully coated, including the seams, for an exhaust system built to last. Delivering the classic MBRP tone with genuinely better flow, this muffler is commonly used on 4-inch turbo-back systems for Ram Cummins, Ford Power Stroke, and GM Duramax diesel trucks.

Each piece is mandrel bent to eliminate wrinkles that would otherwise disrupt exhaust flow, then deburred for a perfectly clean fit. The louvered tube design with fiberglass packing maximizes exhaust flow, helping the engine run cooler with lower exhaust temperatures compared to a restrictive stock muffler.

This muffler is intended for fabricators and diesel truck owners building a custom 4-inch single in/single out exhaust system who need a 30-inch overall muffler to complete the connection. Hangers weld on as desired to fit the specific installation; sold individually. A resonator-delete version without internal packing is available separately as MBRP GP016, along with higher-tier T409 (Armor Plus, M91031) and T304 (Armor Pro, M1031) material options in the same dimensions.