HomeExhaust > MufflersWalker 54319 Exhaust Muffler Assembly
Part #: 54319

Walker 54319 Exhaust Muffler Assembly

Quiet-Flow SS
8 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Quiet-Flow SS
Fitment: Subaru, Legacy and Outback
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker Quiet-Flow SS Exhaust Muffler Assembly

The Walker Quiet-Flow SS Exhaust Muffler Assembly 54319 is designed specifically for Subaru Legacy and Outback models. This stainless steel muffler offers a durable, aluminized finish and an oval shape that supports efficient exhaust flow and noise reduction.

  • Compatible with Subaru Legacy and Outback vehicles
  • Stainless steel construction with aluminized finish for corrosion resistance
  • Oval muffler body measuring 9 inches wide, 7 inches high, and 17 inches long
  • 2-inch inlet and outlet diameters with offset inlet and outlet configuration
  • 2 bolt welded flange inlet type for secure attachment
  • Overall length of 40.75 inches for proper fitment
  • Combination muffler type designed for balanced sound and performance

Detailed Product Description

The Walker Quiet-Flow SS 54319 exhaust muffler assembly is engineered to meet the specific exhaust requirements of Subaru Legacy and Outback models. Constructed from stainless steel, both the muffler body and shell provide enhanced durability and resistance to rust and corrosion. The aluminized finish further protects the muffler from environmental elements, extending its service life.

This muffler features an oval shape with dimensions of 9 inches in width, 7 inches in height, and 17 inches in body length, contributing to efficient exhaust flow and noise attenuation. The inlet and outlet both have a 2-inch outside diameter, with an offset configuration and a 2 bolt welded flange inlet type, ensuring a secure and precise fit during installation. The overall length of 40.75 inches accommodates the exhaust system layout of the specified Subaru models.

About the Quiet-Flow SS Product Line

The Quiet-Flow SS line by Walker focuses on stainless steel mufflers designed to provide a balance of sound reduction and durability. This product line uses high-quality materials and construction methods to deliver reliable exhaust performance while minimizing noise. The 54319 muffler assembly is part of this line, offering Subaru owners a corrosion-resistant option that maintains factory sound levels and exhaust flow characteristics.

Common Applications and Problem Solving

  • Replacement for worn or damaged mufflers on Subaru Legacy and Outback
  • Reduces excessive exhaust noise caused by rusted or failing mufflers
  • Prevents exhaust leaks that can affect engine performance and emissions
  • Restores proper exhaust flow to maintain vehicle efficiency
  • Provides corrosion resistance to extend muffler lifespan in harsh conditions

Installation Notes and Tips

  • Ensure compatibility with Subaru Legacy and Outback models before installation
  • Use the 2 bolt welded flange inlet for secure attachment to the exhaust pipe
  • Check for proper alignment of the offset inlet and outlet to avoid exhaust leaks
  • Inspect surrounding exhaust components for wear or damage during installation
  • Professional installation is recommended to ensure correct fit and function

Quality Assurance and Warranty

Walker manufactures the Quiet-Flow SS 54319 muffler assembly with stainless steel materials and an aluminized finish to provide corrosion resistance and durability. While specific warranty details are not provided here, Walker products typically meet industry standards for quality and reliability. For warranty information, refer to Walker's official documentation or contact the manufacturer directly.

BrandWalker
Part Number54319
PositionQuiet-Flow SS
Body Diameter9
Body Height7
Body Length17
Body MaterialStainless Steel
Body Width9
Friction Material ThicknessAluminized
Grade TypeRegular
Inlet 1 Outside Diameter2
Inlet 1 Type2 Bolt Welded Flange
Inlet ConfigurationOffset
Inlet Outside Diameter2
Inlet Type2 Bolt Welded Flange
Muffler MaterialStainless Steel
Muffler ShapeOval
Muffler TypeCombination
Outlet 1 Outside Diameter2
Outlet 1 TypeTip
Outlet ConfigurationOffset
Outlet TypeTip
Overall Length40.75
ShapeOval

This part fits 8 vehicles. Search below:

YearMakeModelBody TypeLitersCylindersPositionNotes
2004SubaruLegacyWagon2.5LH4N/APremium; with 3 Catalytic Converter; Limited Lifetime Warranty; Quiet-Flow SS
2004SubaruLegacyWagon2.5LH4N/APremium; with Dual Catalytic Converters; Limited Lifetime Warranty; Quiet-Flow SS
2004SubaruOutbackWagon2.5LH4N/APremium; with 3 Catalytic Converter; Limited Lifetime Warranty; Quiet-Flow SS
2003SubaruLegacyWagon2.5LH4N/APremium; with Dual Catalytic Converters; Limited Lifetime Warranty; Quiet-Flow SS
2002SubaruLegacyWagon2.5LH4N/APremium; with Dual Catalytic Converters; Limited Lifetime Warranty; Quiet-Flow SS
2001SubaruLegacyWagon2.5LH4N/APremium; with Dual Catalytic Converters; Limited Lifetime Warranty; Quiet-Flow SS
2000SubaruLegacyWagon2.5LH4N/APremium; with Dual Catalytic Converters; Limited Lifetime Warranty; Quiet-Flow SS
2000SubaruOutbackWagon2.5LH4N/APremium; with Dual Catalytic Converters; Limited Lifetime Warranty; Quiet-Flow SS

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

279-0477485

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.