MBRP GP290022 4" Universal Muffler for Custom Exhaust Systems

Vehicle Fitment

• Universal - fits custom exhaust systems with 4" inlet/outlet exhaust piping

Features

• Universal muffler designed for 4" exhaust systems
• High-flow chambered internal design optimizes exhaust flow
• Heavy-gauge aluminized steel construction for corrosion resistance
• Straight-through architecture reduces backpressure
• Improved exhaust tone with deeper, mellow sound
• Suitable for diesel and gas performance exhaust builds
• Ideal for custom exhaust routing with 4" pipe
• Can be welded or clamped into existing systems

Specifications

• Part Number: GP290022
• Material: Aluminized steel
• Inlet Diameter: 4"
• Outlet Diameter: 4"
• Body Diameter: ~6"
• Overall Length: ~22"
• Configuration: Chambered universal muffler
• Fitment: Universal (custom application)

Included Components

• 1x 4" universal muffler
• (Clamps/hardware not included - weld or clamp per custom install)

Product Description

The MBRP GP290022 Universal Muffler is a performance-oriented exhaust component engineered for custom exhaust systems using 4" diameter pipe. Its chambered internal design enhances exhaust flow while delivering a deeper, mellow sound compared to restrictive OEM mufflers. Constructed from heavy-gauge aluminized steel, it offers corrosion resistance and long-lasting durability in a variety of applications, including diesel and gas performance exhaust builds.

Because the GP290022 is a universal fit part, it can be welded or clamped into place based on your vehicle's exhaust routing and custom layout. It's ideal for truck, off-road, or performance exhaust setups where a 4" muffler helps balance tone and flow. Ensure your exhaust piping matches a 4" diameter before ordering.