Walker 18185 Exhaust Muffler

Brand	Walker 18185
Universal Or Specific Fit	Specific
Shape	Oval
Grade Type	Regular
Inlet Inside Diameter	1.5
Body Width	9.75
Inlet Quantity	1
Outlet Inside Diameter	1.5
Outlet Quantity	1
Reversible	No
Tunable	No
Overall Length	19.75
Body Height	4.25
Body Length	17
Body Material	Steel
Finish	Aluminized
Inlet 1 Inside Diameter	1.5
Inlet 1 Type	Pipe connection
Inlet Configuration	Offset
Inlet Offset	2.875
Inlet Type	Pipe connection
Muffler Type	Combination
Outlet 1 Inside Diameter	1.5
Outlet 1 Type	Pipe connection
Outlet Configuration	Offset
Outlet Type	Pipe connection
Product line	SoundFX Direct Fit
Fits	Honda · 29 vehicles

Direct-fit replacement. Installs as a specific-fit exhaust muffler with pipe connections.

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

SoundFX tuning. Delivers quality appearance with favorable acoustics.

Cross-references BBB Industries 42100, BRExhaust 163-103 and BRExhaust 163-379 for the same application. See all 14.

$59.91Free shipping

In stock · usually ships same day before 1pm CST

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Walker SoundFX Direct Fit Muffler for Honda Civic and CRX

Walker SoundFX Direct Fit muffler Part Number 18185 is a specific-fit exhaust muffler for select 1988-1991 Honda Civic and 1988-1991 Honda CRX applications. It uses an oval steel body with an aluminized finish to support longer service life than low-carbon steel designs, while maintaining a clean OE-style appearance and controlled exhaust acoustics.

Key Features

Specific-fit exhaust muffler for select Honda Civic and Honda CRX models
Oval muffler body with aluminized steel construction
1.5 in. inlet and 1.5 in. outlet with pipe connection ends
Offset inlet and offset outlet configuration
Mechanical interior joints and spun-locked heads for added durability
Combination muffler type for direct-fit exhaust service
Walker SoundFX Direct Fit line for OE-style replacement applications

Product Details

Walker 18185 is built for direct-fit exhaust replacement on 1988-1991 Honda Civic and 1988-1991 Honda CRX vehicles, including listed single-outlet and split-system notes where specified. The muffler measures 19.75 inches overall, with a 17-inch body length, 9.75-inch body width, and 4.25-inch body height. Its aluminized steel body is paired with mechanical interior joints and spun-locked heads to help maintain structural integrity in everyday exhaust service. This part cross-references Dorman - HELP 42819 for the same application.

Fitment

Fits 1988-1991 Honda Civic, N/A; Optional Parts for Split System; SoundFX Direct Fit
Fits 1990-1991 Honda Civic, N/A; with Single Outlet; Optional Parts for Split System; SoundFX Direct Fit
Fits 1988-1991 Honda CRX, N/A; SoundFX Direct Fit
Fits 1989-1991 Honda CRX, N/A; Optional Parts for Split System; SoundFX Direct Fit
Fits 1988 Honda Civic, N/A; SoundFX Direct Fit
Fits 1988 Honda Civic, N/A; with Single Outlet; SoundFX Direct Fit

Common Replacement Reasons

Rust-through or corrosion in the original muffler body
Exhaust noise increase from a worn internal baffle structure
Fitment issues when replacing a factory-style Honda Civic or CRX muffler
Damaged inlet or outlet pipe connection at the muffler ends
Need for an OE-style direct-fit exhaust muffler replacement

Installation Notes

Verify the inlet and outlet configuration, offset dimensions, and vehicle notes before installation. This muffler uses pipe connection ends and is not reversible or tunable, so matching the original exhaust layout is important for proper fit on the listed Honda Civic and Honda CRX applications. Confirm the vehicle’s exhaust configuration, including single-outlet or split-system notes, before ordering.

Quality Assurance

Walker SoundFX Direct Fit mufflers are built with 100% aluminized steel for improved service life versus low-carbon steel, along with mechanical interior joints and spun-locked heads for added durability. Part Number 18185 is engineered as a direct-fit replacement for the listed Honda Civic and Honda CRX applications.

This part fits 29 vehicles

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

Year	Make	Model	Submodel	Body Type	# Doors	Drive Type	Liters	Cylinders	Position	Notes
1991	Honda	Civic	—	Wagon	—	4WD	1.6L	L4	N/A	Optional Parts for Split System; SoundFX Direct Fit
1991	Honda	Civic	—	Wagon	—	—	1.5L	L4	N/A	Optional Parts for Split System; SoundFX Direct Fit
1991	Honda	Civic	Base	Hatchback	2 Door	—	1.5L	L4	N/A	with Single Outlet; Optional Parts for Split System; SoundFX Direct Fit
1991	Honda	Civic	LX	Sedan	4 Door	—	1.5L	L4	N/A	Optional Parts for Split System; SoundFX Direct Fit
1991	Honda	Civic	DX	Sedan	4 Door	—	1.5L	L4	N/A	Optional Parts for Split System; SoundFX Direct Fit
1991	Honda	Civic	DX	Hatchback	2 Door	—	1.5L	L4	N/A	with Single Outlet; Optional Parts for Split System; SoundFX Direct Fit
1991	Honda	CRX	HF	—	—	—	1.5L	L4	N/A	SoundFX Direct Fit
1991	Honda	CRX	Base	—	—	—	1.5L	L4	N/A	Optional Parts for Split System; SoundFX Direct Fit
1990	Honda	Civic	—	Wagon	—	4WD	1.6L	L4	N/A	Optional Parts for Split System; SoundFX Direct Fit
1990	Honda	Civic	—	Wagon	—	—	1.5L	L4	N/A	Optional Parts for Split System; SoundFX Direct Fit
1990	Honda	Civic	Base	Hatchback	2 Door	—	1.5L	L4	N/A	with Single Outlet; Optional Parts for Split System; SoundFX Direct Fit
1990	Honda	Civic	LX	Sedan	4 Door	—	1.5L	L4	N/A	Optional Parts for Split System; SoundFX Direct Fit
1990	Honda	Civic	DX	Sedan	4 Door	—	1.5L	L4	N/A	Optional Parts for Split System; SoundFX Direct Fit
1990	Honda	Civic	DX	Hatchback	2 Door	—	1.5L	L4	N/A	with Single Outlet; Optional Parts for Split System; SoundFX Direct Fit
1990	Honda	CRX	HF	—	—	—	1.5L	L4	N/A	SoundFX Direct Fit
1990	Honda	CRX	Base	—	—	—	1.5L	L4	N/A	Optional Parts for Split System; SoundFX Direct Fit
1989	Honda	Civic	—	Wagon	—	4WD	1.6L	L4	N/A	Optional Parts for Split System; SoundFX Direct Fit
1989	Honda	Civic	—	—	—	—	1.5L	L4	N/A	Optional Parts for Split System; SoundFX Direct Fit
1989	Honda	CRX	HF	—	—	—	1.5L	L4	N/A	SoundFX Direct Fit
1989	Honda	CRX	Base	—	—	—	1.5L	L4	N/A	Optional Parts for Split System; SoundFX Direct Fit
1988	Honda	Civic	SE	Hatchback	—	—	1.5L	L4	N/A	SoundFX Direct Fit
1988	Honda	Civic	Base	Hatchback	—	—	1.5L	L4	N/A	SoundFX Direct Fit
1988	Honda	Civic	—	Wagon	—	4WD	1.6L	L4	N/A	Optional Parts for Split System; SoundFX Direct Fit
1988	Honda	Civic	—	Wagon	—	—	1.5L	L4	N/A	Optional Parts for Split System; SoundFX Direct Fit
1988	Honda	Civic	LX	Sedan	4 Door	—	1.5L	L4	N/A	SoundFX Direct Fit
1988	Honda	Civic	DX	Sedan	4 Door	—	1.5L	L4	N/A	SoundFX Direct Fit
1988	Honda	Civic	DX	Hatchback	2 Door	—	1.5L	L4	N/A	with Single Outlet; SoundFX Direct Fit
1988	Honda	CRX	HF	—	—	—	1.5L	L4	N/A	SoundFX Direct Fit
1988	Honda	CRX	DX	—	—	—	1.5L	L4	N/A	SoundFX Direct Fit
No rows match your filter.

Directly replaces or cross-references 14 part numbers

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

BBB Industries — 42100BRExhaust — 163-103BRExhaust — 163-379BRExhaust — 163-381BRExhaust — 163-459BRExhaust — VFM-1750Dorman - HELP — 42819Gates — 43113Gates — 43115NGK — 5599TYC — 700110163-373278-53343178