Walker
Quiet-Flow SS

Walker 54811 Exhaust Muffler Assembly

Brand Walker 54811
Body Diameter 11
Body Height 5.5
Body Length 22
Body Material Stainless Steel
Body Width 11
Friction Material Thickness Aluminized
Grade Type Regular
Inlet 1 Type 2 Bolt Welded Flange
Inlet Configuration Offset
Inlet Type 2 Bolt Welded Flange
Muffler Material Stainless Steel
Muffler Shape Oval
Muffler Type Reflection
Outlet 1 Outside Diameter 2.25
Outlet 1 Type Pipe Connection
Outlet Configuration Offset
Outlet Type Pipe Connection
Overall Length 42.5
Shape Oval
Product line Quiet-Flow SS
Fits Subaru · 4 vehicles

OE-style replacement. Direct-fit muffler assembly for straightforward installation.

Stainless steel construction. Helps deliver longer life than typical aluminized mufflers.

Quiet-Flow SS line. Walker’s stainless-steel muffler family for broad-market coverage.

Cross-references BRExhaust 229-065 and 229-067 for the same application. See all 2.

$158.75Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $158.75
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Walker Quiet-Flow SS Muffler Assembly

Walker Quiet-Flow SS 54811 is a direct-fit exhaust muffler assembly for select Subaru Impreza models from 2008-2011. It combines an OE-style replacement layout with stainless-steel construction for longer service life than typical aluminized mufflers.

Built for the 2008-2011 Subaru Impreza, this muffler assembly uses an offset inlet and offset outlet with a 2-bolt welded flange inlet and a 2.25-inch pipe connection outlet. The oval body measures 11 inches wide, 5.5 inches high, and 22 inches long, with an overall length of 42.5 inches.

Key Features

  • Direct-fit exhaust muffler assembly for select Subaru Impreza applications
  • Stainless-steel muffler body and stainless-steel muffler material
  • Oval reflection-style muffler design
  • Offset inlet and offset outlet configuration
  • 2-bolt welded flange inlet for OE-style mounting
  • 2.25-inch outlet pipe connection
  • Walker Quiet-Flow SS 54811 fitment for 2008-2011 Subaru Impreza

Product Details

The Quiet-Flow SS product line focuses on direct replacement exhaust components with stainless-steel construction for improved durability in everyday driving conditions. Walker 54811 follows an OE-style layout to match the original exhaust routing on compatible Subaru Impreza models while maintaining the factory-style connection points needed for a proper replacement. This part cross-references BRExhaust 229-065 and 229-067 for the same application.

What It Helps Address

  • Rust or corrosion in the original muffler assembly
  • Exhaust noise caused by a worn or damaged muffler
  • Fitment issues from a failed OE-style exhaust section
  • Replacement needs after exhaust leakage at the muffler area
  • Restoring factory-style exhaust routing on a Subaru Impreza

Installation Notes

Fits 2008-2011 Subaru Impreza, N/A. Verify inlet and outlet orientation, flange style, and pipe diameter before installation to confirm alignment with the existing exhaust system. Because this is a direct-fit muffler assembly, matching the vehicle’s original exhaust configuration is important for proper installation and sealing.

Quality Assurance

Walker Quiet-Flow SS 54811 is built with stainless-steel construction and OE-style replacement geometry for long-term exhaust service. The fitment listing notes Premium and Limited Lifetime Warranty coverage for the applicable Subaru Impreza applications.

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelBody TypeLitersCylindersPositionNotes
2011SubaruImprezaHatchback2.5LH4N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2010SubaruImprezaHatchback2.5LH4N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2009SubaruImprezaHatchback2.5LH4N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2008SubaruImprezaHatchback2.5LH4N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
BRExhaust — 229-065229-067