Walker 21745 Exhaust Muffler - Right

Walker Quiet-Flow SS Muffler for Subaru Fitment

Walker Quiet-Flow SS 21745 is a specific-fit exhaust muffler built with 100% stainless-steel construction for corrosion resistance and long-term service. It uses an oval body, offset inlet and outlet configuration, and OE-style sound characteristics for a direct replacement on select Subaru applications.

Key Features

• Specific-fit exhaust muffler for select Subaru vehicles
• 100% stainless-steel body material with natural finish
• Oval reflection-style muffler design
• Offset inlet and offset outlet layout
• 2-bolt welded flange inlet for secure exhaust connection
• 2.75-inch outlet diameter with tip outlet design
• Walker Quiet-Flow SS product line for OE-style sound and fit

Product Details

Walker Quiet-Flow SS 21745 is engineered for direct replacement use on the right side of 2009-2013 Subaru Forester and 2008-2011 Subaru Impreza applications. The stainless-steel construction supports durability in exhaust service, while the reflection muffler type is used to manage exhaust tone without changing the vehicle’s factory-style character. This part number, 21745, is a practical choice when you need a Subaru Forester right muffler or a Subaru Impreza right muffler with specific fitment and OE-style sound control.

The Quiet-Flow SS line is Walker’s stainless-steel muffler family for domestic and import vehicles, focused on precision fit and consistent exhaust flow. For buyers searching Walker 21745, Subaru Forester muffler replacement, or Subaru Impreza right exhaust muffler, this part matches those fitment needs directly. This part cross-references AP Exhaust 20056 for the same application.

What It Helps Address

• Rust or corrosion in the original muffler body
• Exhaust noise from a worn or damaged muffler
• Restricted exhaust flow caused by internal deterioration
• Fitment issues when replacing a factory-style right-side muffler
• Need for a stainless-steel replacement on Subaru exhaust systems

Installation Notes

Verify the vehicle’s right-side exhaust layout, inlet offset, and 2-bolt welded flange connection before installation. Confirm outlet diameter and overall muffler dimensions against the original part to ensure proper alignment with the exhaust system. Professional installation is recommended for accurate fitment and exhaust sealing.

Quality Assurance

Walker Quiet-Flow SS mufflers are built with stainless-steel construction and designed for precision fit and OE-style sound. Part number 21745 is covered by the fitment listed for 2009-2013 Subaru Forester, right, and 2008-2011 Subaru Impreza, right.