Walker 22254 Exhaust Muffler

Walker Quiet-Flow SS Muffler for Pathfinder and QX60

Walker Quiet-Flow SS Part Number 22254 is a specific-fit exhaust muffler built with 100% stainless-steel construction. It is engineered for OE-style sound, precise fitment, and steady exhaust flow for select Nissan Pathfinder and INFINITI applications.

Key Features

• 100% stainless-steel body material for corrosion resistance
• Specific-fit oval muffler with reflection-style internal design
• 2.5-inch inlet inside diameter with offset inlet configuration
• 2-bolt welded flange outlet with center outlet configuration
• Natural finish and regular grade construction
• Walker Quiet-Flow SS Part Number 22254 for select domestic and import vehicles

Product Details

The Quiet-Flow SS product line focuses on stainless-steel mufflers that match OE-style sound characteristics while maintaining a precise fit. This Walker muffler uses an oval body shape, 30-inch overall length, 19-inch body length, and 5.5-inch body height to support direct replacement applications. It is a specific-fit exhaust muffler with one inlet and one outlet, designed for vehicles that require a 2.5-inch pipe connection and a welded flange outlet.

Fits 2019-2020 Nissan Pathfinder, N/A. Fits 2013-2018 Nissan Pathfinder, N/A. Fits 2014-2017 INFINITI QX60, N/A. Fits 2013 INFINITI JX35, N/A.

This part cross-references AP Exhaust 7570 and Four Seasons 73025 for the same application.

What It Helps Address

• Exhaust noise that has become louder than factory levels
• Rust or corrosion in the original muffler body
• Poor exhaust sealing at the muffler connection points
• Fitment issues when replacing a worn OE-style muffler
• Reduced exhaust flow caused by an aging internal muffler structure

Installation Notes and Tips

Verify inlet and outlet configuration, flange style, and body dimensions before installation. This muffler is not reversible and is not tunable, so orientation should match the vehicle’s exhaust routing. Confirm the vehicle application by year, make, and model before ordering Walker Quiet-Flow SS 22254.

Quality Assurance

Walker Quiet-Flow SS mufflers are built from stainless steel for long-term durability and are designed to deliver a controlled OE-style sound profile. The product line is positioned for direct-fit replacement on a range of domestic and import vehicles, including Nissan Pathfinder and INFINITI JX35 and QX60 applications.