Walker
SoundFX Direct Fit

Walker 18905 Exhaust Muffler

Brand Walker 18905
Universal Or Specific Fit Specific
Shape Oval
Grade Type Regular
Body Width 9
Inlet Quantity 1
Outlet Quantity 1
Reversible No
Tunable No
Overall Length 39.25
Body Height 7
Body Length 15
Body Material Steel
Finish Aluminized
Inlet 1 Type 2 bolt welded flange
Inlet Configuration Offset
Inlet Offset 2
Inlet Type 2 bolt welded flange
Muffler Type Combination
Outlet 1 Outside Diameter 2
Outlet 1 Type Tip
Outlet Configuration Offset
Outlet Outside Diameter 2
Outlet Type Tip
Product line SoundFX Direct Fit
Fits Acura and Honda · 33 vehicles

Direct-fit design. Installs as a specific replacement with a straightforward, bolt-on fit.

Aluminized steel. Helps resist corrosion for longer service life than low-carbon steel.

Mechanical interior joints. Spun-locked heads add durability and a quality appearance.

Cross-references AP Exhaust 700437, BRExhaust 279-841 and BRExhaust 281-847 for the same application. See all 3.

$83.23Free 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 $83.23
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Walker SoundFX Direct Fit Muffler for Civic and EL

Walker SoundFX Direct Fit muffler Part Number 18905 is a specific-fit exhaust muffler built for select Honda Civic and Acura EL applications. It uses aluminized steel construction and a direct-fit layout to support a clean replacement on vehicles that match the listed fitment.

Key Features

  • Specific-fit exhaust muffler for listed Honda and Acura applications
  • Oval body shape with offset inlet and offset outlet configuration
  • 2-bolt welded flange inlet for direct-fit installation
  • Aluminized steel body and finish for improved corrosion resistance versus low-carbon steel
  • Mechanical interior joints and spun-locked heads for added durability
  • Combination muffler design with 2-inch outlet outside diameter
  • Walker SoundFX Direct Fit line focuses on OE-style appearance and controlled exhaust acoustics

Detailed Description

Walker 18905 is part of the SoundFX Direct Fit product line, which is built for vehicle-specific exhaust replacement rather than universal adaptation. This muffler features a 39.25-inch overall length, 15-inch body length, 9-inch body width, and 7-inch body height, with an oval steel body finished in aluminized coating. The offset inlet and offset outlet layout, along with the 2-bolt welded flange connection, supports a direct replacement on the listed applications. This part cross-references AP Exhaust 700437 for the same application.

Compatible With 2001-2005 Honda Civic, USA built and USA/Canada production SoundFX Direct Fit applications, 2003-2005 Honda Civic SoundFX Direct Fit applications, and 2001-2003 Acura EL SoundFX Direct Fit applications. Walker 18905 is a practical choice when replacing a worn muffler on a Honda Civic or Acura EL and maintaining the original exhaust routing and outlet size.

Common Problems This Muffler Can Address

  • Excessive exhaust noise from a damaged or rusted muffler
  • Corrosion-related failure in the muffler body or seams
  • Exhaust leakage at the muffler connection point
  • Poor exhaust tone caused by internal muffler deterioration
  • Replacement needs on a vehicle-specific Honda Civic or Acura EL exhaust system

Installation Notes and Tips

Verify the vehicle’s production details and exhaust configuration before ordering, since fitment varies by model year and build location. Confirm the inlet and outlet orientation, flange style, and 2-inch outlet diameter against the existing exhaust system. Professional installation is recommended to ensure proper alignment, sealing, and hanger positioning on the vehicle.

Quality Assurance

Walker SoundFX Direct Fit mufflers are built with 100% aluminized steel, mechanical interior joints, and spun-locked heads to support service life and structural durability in exhaust service.

This part fits 33 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersPositionNotes
2005HondaCivicEX1.7LL4N/AUSA Built; SoundFX Direct Fit
2005HondaCivicValue Package1.7LL4N/AUSA And Canada Production; SoundFX Direct Fit
2005HondaCivicDX1.7LL4N/AUSA And Canada Production; SoundFX Direct Fit
2005HondaCivicHybrid1.3LL4N/ASoundFX Direct Fit
2005HondaCivicHX1.7LL4N/AUSA Built; SoundFX Direct Fit
2005HondaCivicGX1.7LL4N/AUSA Built; SoundFX Direct Fit
2005HondaCivicLX1.7LL4N/AUSA And Canada Production; SoundFX Direct Fit
2004HondaCivicGX1.7LL4N/AUSA Built; SoundFX Direct Fit
2004HondaCivicHX1.7LL4N/AUSA Built; SoundFX Direct Fit
2004HondaCivicDX1.7LL4N/AUSA And Canada Production; SoundFX Direct Fit
2004HondaCivicHybrid1.3LL4N/ASoundFX Direct Fit
2004HondaCivicValue Package1.7LL4N/AUSA And Canada Production; SoundFX Direct Fit
2004HondaCivicLX1.7LL4N/AUSA And Canada Production; SoundFX Direct Fit
2004HondaCivicEX1.7LL4N/AUSA Built; SoundFX Direct Fit
2003AcuraEL—1.7LL4N/ASoundFX Direct Fit
2003HondaCivicGX1.7LL4N/AUSA Built; SoundFX Direct Fit
2003HondaCivicHX1.7LL4N/AUSA Built; SoundFX Direct Fit
2003HondaCivicDX1.7LL4N/AUSA And Canada Production; SoundFX Direct Fit
2003HondaCivicHybrid1.3LL4N/ASoundFX Direct Fit
2003HondaCivicLX1.7LL4N/AUSA And Canada Production; SoundFX Direct Fit
2003HondaCivicEX1.7LL4N/AUSA Built; SoundFX Direct Fit
2002AcuraEL—1.7LL4N/ASoundFX Direct Fit
2002HondaCivicGX1.7LL4N/AUSA Built; SoundFX Direct Fit
2002HondaCivicHX1.7LL4N/AUSA Built; SoundFX Direct Fit
2002HondaCivicDX1.7LL4N/AUSA And Canada Production; SoundFX Direct Fit
2002HondaCivicLX1.7LL4N/AUSA And Canada Production; SoundFX Direct Fit
2002HondaCivicEX1.7LL4N/AUSA Built; SoundFX Direct Fit
2001AcuraEL—1.7LL4N/ASoundFX Direct Fit
2001HondaCivicEX1.7LL4N/AUSA Built; SoundFX Direct Fit
2001HondaCivicDX1.7LL4N/AUSA And Canada Production; SoundFX Direct Fit
2001HondaCivicHX1.7LL4N/AUSA Built; SoundFX Direct Fit
2001HondaCivicGX1.7LL4N/AUSA Built; SoundFX Direct Fit
2001HondaCivicLX1.7LL4N/AUSA And Canada Production; SoundFX Direct Fit
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AP Exhaust — 700437BRExhaust — 279-841BRExhaust — 281-847