Walker
Quiet-Flow SS

Walker 54668 Exhaust Muffler Assembly

Brand Walker 54668
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 2.25
Outlet 1 Type Pipe Connection
Outlet Configuration Offset
Outlet Type Pipe Connection
Overall Length 37.375
Shape Oval
Product line Quiet-Flow SS
Fits Honda · 12 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 muffler assembly from a trusted exhaust brand.

Cross-references AP Exhaust 7548 and BRExhaust 163-050 for the same application. See all 2.

$121.17Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $121.17
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 54668 is a direct-fit exhaust muffler assembly built for 2006-2011 Honda Civic applications. It combines stainless-steel construction with an OE-style replacement layout to support longer service life than typical aluminized mufflers.

The Quiet-Flow SS product line focuses on replacement mufflers that match factory-style fitment while using stainless-steel materials in key areas. For Honda Civic owners looking for a stock-style exhaust repair, this assembly offers a practical option for restoring proper exhaust routing and sound control.

  • Direct-fit exhaust muffler assembly for 2006-2011 Honda Civic
  • Walker Quiet-Flow SS 54668 part number for application matching
  • Stainless-steel muffler and body construction
  • Oval muffler shape with offset inlet and offset outlet configuration
  • 2-bolt welded flange inlet for OE-style connection
  • 1.75 in. inlet outside diameter and 2.25 in. outlet outside diameter
  • Overall length: 37.375 in.; body dimensions: 15 in. length, 9 in. width, 7 in. height

Detailed Product Overview

Walker 54668 is an exhaust muffler assembly for the 2006-2011 Honda Civic that follows an OE-style replacement format. It uses a combination muffler design with an oval body, offset inlet, and offset outlet to match the factory exhaust path and connection points. The stainless-steel muffler and body materials are selected to provide improved corrosion resistance compared with standard aluminized muffler construction, while the aluminized finish supports a factory-style appearance.

This part cross-references AP Exhaust 7548 and BRExhaust 163-050 for the same application. If you are searching for a Honda Civic muffler replacement, Walker Quiet-Flow SS 54668 is a direct-fit option to consider for 2006-2011 Honda Civic exhaust repair work.

Common Problems This Part Can Address

  • Rust or corrosion in the original muffler assembly
  • Exhaust noise caused by a damaged or leaking muffler
  • Factory exhaust fitment issues after muffler failure
  • Restricted exhaust flow from a deteriorated muffler body
  • Need for an OE-style replacement on a Honda Civic exhaust system

Installation Notes and Tips

Verify inlet and outlet diameters, flange style, and overall length against the existing exhaust before installation. This assembly uses a 2-bolt welded flange inlet and pipe connection outlet, so matching the factory connection style is important for proper alignment on the 2006-2011 Honda Civic. Inspect adjoining exhaust components, hangers, and sealing surfaces during replacement to help ensure a secure installation.

Quality Assurance

Walker Quiet-Flow SS muffler assemblies are built as direct-fit OE-style replacements and use stainless-steel construction to provide longer life than typical aluminized mufflers. Part number 54668 is engineered for domestic and foreign vehicle applications, including the Honda Civic fitment listed above.

This part fits 12 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersPositionNotes
2011HondaCivic1.8LL4N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2011HondaCivicHybrid1.3LL4N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2010HondaCivic1.8LL4N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2010HondaCivicHybrid1.3LL4N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2009HondaCivic1.8LL4N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2009HondaCivicHybrid1.3LL4N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2008HondaCivic1.8LL4N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2008HondaCivicHybrid1.3LL4N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2007HondaCivic1.8LL4N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2007HondaCivicHybrid1.3LL4N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2006HondaCivic1.8LL4N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2006HondaCivicHybrid1.3LL4N/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.
AP Exhaust — 7548BRExhaust — 163-050