Walker
Quiet-Flow SS

Walker 54977 Exhaust Muffler Assembly

Brand Walker 54977
Inlet Outside Diameter 2.5
Finish Aluminized
Body Diameter 11
Inlet Type 2 bolt welded flange
Outlet Type Dual tips
Body Height 5.5
Body Length 15
Muffler Material Stainless steel
Muffler Shape Oval
Overall Length 45.875
Body Material Stainless steel
Body Width 11
Grade Type Regular
Inlet 1 Outside Diameter 2.5
Inlet 1 Type 2 bolt welded flange
Inlet Configuration Offset
Inlet Quantity 1
Muffler Type Reflection
Outlet 1 Outside Diameter 2
Outlet 1 Type Dual tips
Outlet 2 Outside Diameter 2
Outlet Configuration Dual
Outlet Quantity 2
Shape Oval
Product line Quiet-Flow SS
Fits Hyundai and Kia · 10 vehicles

Direct-fit replacement. OE-style design installs without modifications.

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

Reflection muffler design. Engineered for quieter exhaust flow.

Cross-references 40097 for the same application. See all 1.

$156.88Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $156.88
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 54977 is a direct-fit exhaust muffler assembly built for OE-style replacement on select Kia Sorento and Hyundai Santa Fe applications. It uses stainless steel for the muffler and body, with an oval reflection-style design and dual outlet tips for a factory-like exhaust layout.

The Quiet-Flow SS line focuses on longer service life than typical aluminized mufflers, while maintaining a direct-fit format for easier replacement. This part number 54977 is engineered for 2.5-inch inlet applications with a 2-bolt welded flange and dual 2-inch outlets.

Key Features

  • Walker Quiet-Flow SS 54977 exhaust muffler assembly
  • Stainless steel muffler and body construction
  • Direct-fit OE-style replacement for select Kia Sorento and Hyundai Santa Fe models
  • Oval muffler shape with reflection-type internal design
  • 2.5-inch inlet outside diameter with 2-bolt welded flange
  • Dual 2-inch outlet configuration with dual tips
  • Overall length: 45.875 inches
  • Body dimensions: 11 inches wide, 5.5 inches high, 15 inches long

Detailed Description

Walker 54977 is designed for drivers replacing a worn or damaged rear muffler on 2011-2013 Kia Sorento and 2010-2012 Hyundai Santa Fe models. The stainless steel construction helps provide extended durability compared with standard aluminized mufflers, while the OE-style layout supports a clean factory replacement on vehicles that use a 2.5-inch inlet and dual outlet configuration. If you are searching for a Walker Quiet-Flow SS muffler assembly for Kia Sorento or Hyundai Santa Fe, part number 54977 matches the listed fitment and exhaust connection style.

This part cross-references 40097 for the same application.

What It Helps Address

  • Rusted or corroded muffler housing
  • Exhaust noise caused by a failing muffler
  • Restricted exhaust flow from internal deterioration
  • Damaged inlet or outlet connections
  • Loss of factory-style exhaust routing on compatible Kia Sorento and Hyundai Santa Fe vehicles

Installation Notes and Tips

Verify the vehicle’s inlet diameter, flange style, and dual outlet layout before installation. This muffler assembly uses a 2.5-inch inlet with a 2-bolt welded flange and dual 2-inch outlets, so matching the existing exhaust configuration is important for proper fitment. Confirm the vehicle application by year, make, and model before ordering Walker 54977.

Quality Assurance

Walker Quiet-Flow SS muffler assemblies are built with stainless steel construction and direct-fit OE-style dimensions for long-term replacement use. This part is listed for 2011-2013 Kia Sorento and 2010-2012 Hyundai Santa Fe applications, and it is backed by a limited lifetime warranty noted in the fitment data.

This part fits 10 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersNotes
2013KiaSorentoEX Luxury3.5LV6Premium; Limited Lifetime Warranty; Quiet-Flow SS
2013KiaSorentoLX3.5LV6Premium; Limited Lifetime Warranty; Quiet-Flow SS
2013KiaSorentoEX3.5LV6Premium; Limited Lifetime Warranty; Quiet-Flow SS
2012HyundaiSanta Fe—3.5LV6Premium; Limited Lifetime Warranty; Quiet-Flow SS
2012KiaSorentoLX3.5LV6Premium; Limited Lifetime Warranty; Quiet-Flow SS
2012KiaSorentoEX3.5LV6Premium; Limited Lifetime Warranty; Quiet-Flow SS
2011HyundaiSanta Fe—3.5LV6Premium; Limited Lifetime Warranty; Quiet-Flow SS
2011KiaSorentoLX3.5LV6Premium; Limited Lifetime Warranty; Quiet-Flow SS
2011KiaSorentoEX3.5LV6Premium; Limited Lifetime Warranty; Quiet-Flow SS
2010HyundaiSanta Fe—3.5LV6Premium; Limited Lifetime Warranty; Quiet-Flow SS
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
40097