Walker
Quiet-Flow SS

Walker 54312 Exhaust Muffler Assembly

Brand Walker 54312
Body Diameter 9
Body Height 7
Body Length 15
Body Material Stainless Steel
Body Width 9
Friction Material Thickness Aluminized
Grade Type Regular
Inlet 1 Outside Diameter 1.75
Inlet 1 Type 2 Bolt Welded Flange
Inlet Configuration Offset
Inlet Outside Diameter 1.75
Inlet Type 2 Bolt Welded Flange
Muffler Material Stainless Steel
Muffler Shape Oval
Muffler Type Combination
Outlet 1 Outside Diameter 2
Outlet 1 Type Tip
Outlet Configuration Offset
Outlet Type Tip
Overall Length 39.25
Shape Oval
Product line Quiet-Flow SS
Fits Honda and Acura · 33 vehicles

OE-style replacement. Direct-fit muffler assembly for easier 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 applications.

Cross-references AP Exhaust 28706, BRExhaust 163-045 and BRExhaust 278-867 for the same application. See all 7.

$132.87Free shipping
In stock · usually ships same day before 1pm CST
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Step 2 — Quantity
Order total $132.87
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 54312 is a direct-fit exhaust muffler assembly built with stainless steel body and muffler construction for longer service life than typical aluminized mufflers. It is made for OE-style replacement on select Honda Civic and Acura EL applications, with an offset inlet and offset outlet tip layout for factory-style exhaust routing.

Key Features

  • Walker Quiet-Flow SS line for OE-style exhaust replacement
  • Stainless steel muffler material and body material
  • Oval muffler shape with 9-inch body diameter
  • Offset inlet configuration with 1.75-inch inlet outside diameter
  • Offset outlet configuration with 2-inch outlet tip
  • Overall length: 39.25 inches
  • 2-bolt welded flange inlet type for direct-fit installation
  • Finish: aluminized

Product Details

This exhaust muffler assembly is engineered as a direct replacement for select 2001-2005 Honda Civic and 2001-2003 Acura EL vehicles. The Walker Quiet-Flow SS 54312 uses stainless steel construction in the muffler and body to provide improved corrosion resistance compared with standard aluminized mufflers, while maintaining an OE-style fit and exhaust path. The oval combination muffler design, offset inlet, and offset outlet tip help match factory routing and appearance on the listed applications. This part cross-references AP Exhaust 28706 for the same application.

Common Exhaust Issues This Part Addresses

  • Rust-through or corrosion in the original muffler assembly
  • Exhaust leaks caused by a damaged muffler body or flange area
  • Excessive exhaust noise from a failing muffler
  • Factory exhaust fitment problems after prior repair work
  • Replacement needs on a 2001-2005 Honda Civic or 2001-2003 Acura EL

Installation Notes and Fitment

Fits 2001-2005 Honda Civic, N/A. Fits 2001-2005 Honda Civic, N/A, USA and Canada production. Fits 2003-2005 Honda Civic, N/A. Fits 2001-2003 Acura EL, N/A. Verify inlet and outlet orientation, flange style, and overall length against the original exhaust assembly before installation. This part number is Walker 54312, and it is commonly searched as a Walker Quiet-Flow SS muffler for Honda Civic and Acura EL replacement.

Quality Assurance

Walker positions the Quiet-Flow SS line as a stainless-steel, direct-fit OE-style replacement for domestic and foreign vehicles. The manufacturer description notes longer life than typical aluminized mufflers, and the listed applications include limited lifetime warranty coverage in the fitment notes.

This part fits 33 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersPositionNotes
2005HondaCivicEX1.7LL4N/APremium; USA Built; Limited Lifetime Warranty; Quiet-Flow SS
2005HondaCivicValue Package1.7LL4N/AUSA And Canada Production; Premium; Limited Lifetime Warranty; Quiet-Flow SS
2005HondaCivicGX1.7LL4N/APremium; USA Built; Limited Lifetime Warranty; Quiet-Flow SS
2005HondaCivicDX1.7LL4N/AUSA And Canada Production; Premium; Limited Lifetime Warranty; Quiet-Flow SS
2005HondaCivicHX1.7LL4N/APremium; USA Built; Limited Lifetime Warranty; Quiet-Flow SS
2005HondaCivicLX1.7LL4N/AUSA And Canada Production; Premium; Limited Lifetime Warranty; Quiet-Flow SS
2005HondaCivicHybrid1.3LL4N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2004HondaCivicHX1.7LL4N/APremium; USA Built; Limited Lifetime Warranty; Quiet-Flow SS
2004HondaCivicEX1.7LL4N/APremium; USA Built; Limited Lifetime Warranty; Quiet-Flow SS
2004HondaCivicGX1.7LL4N/APremium; USA Built; Limited Lifetime Warranty; Quiet-Flow SS
2004HondaCivicDX1.7LL4N/AUSA And Canada Production; Premium; Limited Lifetime Warranty; Quiet-Flow SS
2004HondaCivicLX1.7LL4N/AUSA And Canada Production; Premium; Limited Lifetime Warranty; Quiet-Flow SS
2004HondaCivicValue Package1.7LL4N/AUSA And Canada Production; Premium; Limited Lifetime Warranty; Quiet-Flow SS
2004HondaCivicHybrid1.3LL4N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2003AcuraEL1.7LL4N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2003HondaCivicHX1.7LL4N/APremium; USA Built; Limited Lifetime Warranty; Quiet-Flow SS
2003HondaCivicEX1.7LL4N/APremium; USA Built; Limited Lifetime Warranty; Quiet-Flow SS
2003HondaCivicGX1.7LL4N/APremium; USA Built; Limited Lifetime Warranty; Quiet-Flow SS
2003HondaCivicDX1.7LL4N/AUSA And Canada Production; Premium; Limited Lifetime Warranty; Quiet-Flow SS
2003HondaCivicLX1.7LL4N/AUSA And Canada Production; Premium; Limited Lifetime Warranty; Quiet-Flow SS
2003HondaCivicHybrid1.3LL4N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2002AcuraEL1.7LL4N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2002HondaCivicHX1.7LL4N/APremium; USA Built; Limited Lifetime Warranty; Quiet-Flow SS
2002HondaCivicEX1.7LL4N/APremium; USA Built; Limited Lifetime Warranty; Quiet-Flow SS
2002HondaCivicGX1.7LL4N/APremium; USA Built; Limited Lifetime Warranty; Quiet-Flow SS
2002HondaCivicDX1.7LL4N/AUSA And Canada Production; Premium; Limited Lifetime Warranty; Quiet-Flow SS
2002HondaCivicLX1.7LL4N/AUSA And Canada Production; Premium; Limited Lifetime Warranty; Quiet-Flow SS
2001AcuraEL1.7LL4N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2001HondaCivicEX1.7LL4N/APremium; USA Built; Limited Lifetime Warranty; Quiet-Flow SS
2001HondaCivicGX1.7LL4N/APremium; USA Built; Limited Lifetime Warranty; Quiet-Flow SS
2001HondaCivicDX1.7LL4N/AUSA And Canada Production; Premium; Limited Lifetime Warranty; Quiet-Flow SS
2001HondaCivicHX1.7LL4N/APremium; USA Built; Limited Lifetime Warranty; Quiet-Flow SS
2001HondaCivicLX1.7LL4N/AUSA And Canada Production; Premium; Limited Lifetime Warranty; Quiet-Flow SS
Directly replaces or cross-references 7 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AP Exhaust — 28706BRExhaust — 163-045BRExhaust — 278-867BRExhaust — 279-841BRExhaust — 281-847OSC — 2424SDF1507