Walker 55629 Exhaust Muffler Assembly - Right

Walker Quiet-Flow Muffler Assembly 55629

Walker Quiet-Flow 55629 is a direct-fit exhaust muffler assembly built for OE-style replacement on select vehicles. It combines a precision fit with a steel, aluminized construction and a combination muffler design to support proper exhaust routing and a controlled sound profile.

Fits 2005-2009 Audi A4 Quattro, right. This application-specific fitment makes it a practical choice for drivers replacing a worn rear exhaust section on the Audi A4 Quattro while maintaining factory-style exhaust alignment.

Key Features

• Direct-fit exhaust muffler assembly for OE-style replacement
• Walker Quiet-Flow product line focused on precision fit and controlled exhaust sound
• Steel body and muffler construction with aluminized finish
• Combination muffler type with irregular body shape
• Offset inlet and offset outlet layout for the listed application
• 2-inch inlet outside diameter and 3-inch outlet tip
• Overall length: 46.625 inches
• Fits the right-side rear exhaust position on select Audi A4 Quattro models

Product Details

Walker Quiet-Flow 55629 is engineered as a replacement muffler assembly for 2005-2009 Audi A4 Quattro right-side applications. The Quiet-Flow line is positioned as an OE-style replacement family with coverage for domestic and foreign vehicles, and this part follows that approach with a direct-fit layout, pipe connection inlet, and tip-style outlet. The aluminized steel construction helps support durability in a standard replacement exhaust service, while the irregular body shape and combination muffler design reflect the packaging needed for the listed vehicle application. Part number 55629 is also referenced in cross applications under BRExhaust 280-663 and interchange numbers 278-779 and 280661.

Common Replacement Reasons

• Rust or corrosion in the original muffler assembly
• Exhaust noise increase from a damaged internal muffler structure
• Fitment issues after prior exhaust repairs or modifications
• Restricted exhaust flow caused by a deteriorated rear exhaust section
• Need for an OE-style replacement on a 2005-2009 Audi A4 Quattro, right

Installation Notes

Verify inlet and outlet orientation, overall length, and right-side position before installation. Confirm the 2-inch inlet connection and 3-inch tip outlet match the existing exhaust layout on the vehicle. Because this is a direct-fit muffler assembly, proper alignment with the factory exhaust path is important for sealing and hanger positioning.

Quality Assurance

Walker Quiet-Flow muffler assemblies are built around OE-style replacement requirements with precision fit and controlled sound characteristics. Part number 55629 is intended for the listed Audi A4 Quattro fitment and follows Walker’s Quiet-Flow product line standards for replacement exhaust service.