Walker 21671 Exhaust Muffler - Right

Walker Quiet-Flow SS Muffler for Subaru Legacy

Walker Quiet-Flow SS muffler Part Number 21671 is a specific-fit exhaust muffler for select Subaru Legacy models with a right-side application. It combines 100% stainless-steel construction with an OE-style sound profile and precision fitment for a direct replacement on the listed vehicles.

Key Features

• Specific-fit exhaust muffler for select Subaru Legacy applications
• 100% stainless-steel body construction for corrosion resistance
• Oval muffler body with reflection-style internal design
• Offset inlet and offset outlet configuration
• 2-bolt welded flange inlet for OE-style connection
• 2.25-inch outlet diameter with tip outlet design
• Walker Quiet-Flow SS product line for domestic and import vehicles

Product Details

The Walker Quiet-Flow SS line is built around stainless-steel construction, precision fit, and controlled exhaust tone. This muffler is engineered for the right side on 2005-2009 Subaru Legacy models listed in the fitment data, including Premium trims and the noted emissions configurations. Part Number 21671 is shaped as an oval muffler with a 26-inch overall length, 13-inch body length, 9-inch body width, and 7-inch body height for a direct replacement profile.

For shoppers searching for a Subaru Legacy right muffler replacement, Walker 21671 offers a fitment-specific solution with an OE-style sound character and a welded flange inlet connection. This part cross-references BRExhaust 229-019 for the same application.

Common Problems This Muffler Can Address

• Rust or corrosion in the original muffler body
• Exhaust noise from a damaged or leaking muffler
• Poor fit from a universal replacement part
• Need for a direct-fit Subaru Legacy exhaust muffler replacement
• Restoring a factory-like exhaust tone on the right side

Installation Notes and Tips

Verify the vehicle’s year, trim, emissions configuration, and right-side application before ordering. This muffler uses a specific-fit layout with a 2-bolt welded flange inlet and offset inlet/outlet configuration, so alignment should be checked against the existing exhaust path before final installation. If the original assembly was welded, inspect all related exhaust components and replace any worn sections required for a proper repair.

Quality Assurance

Walker Quiet-Flow SS mufflers are part of a stainless-steel exhaust line developed for precision fit and OE-style sound control. Part Number 21671 is backed by the limited lifetime warranty noted in the fitment data for the listed Subaru Legacy applications.