Walker 18201 Exhaust Muffler

Brand	Walker 18201
Universal Or Specific Fit	Specific
Shape	Oval
Grade Type	Regular
Inlet Inside Diameter	2.25
Body Width	9.75
Inlet Quantity	1
Outlet Quantity	1
Reversible	No
Tunable	No
Overall Length	29.5
Body Height	4.25
Body Length	18
Body Material	Steel
Finish	Aluminized
Inlet 1 Inside Diameter	2.25
Inlet 1 Type	Pipe connection
Inlet Configuration	Offset
Inlet Offset	2.875
Inlet Type	Pipe connection
Muffler Type	Combination
Outlet 1 Outside Diameter	2
Outlet 1 Type	Tip
Outlet Configuration	Center
Outlet Outside Diameter	2
Outlet Type	Tip
Product line	SoundFX Direct Fit
Fits	Buick, Chevrolet, Oldsmobile, and Pontiac · 105 vehicles

Direct-fit design. Installs as a specific-fit exhaust muffler with no guesswork.

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

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

Cross-references AMS Automotive 6591 for the same application. See all 1.

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Walker SoundFX Direct Fit Muffler for GM Midsize Cars

Walker SoundFX Direct Fit muffler Part Number 18201 is a specific-fit exhaust muffler for select Buick, Chevrolet, Oldsmobile, and Pontiac applications. It is built for drivers looking for a direct replacement that maintains a clean appearance and controlled exhaust tone.

The SoundFX Direct Fit line focuses on OE-style fitment and practical durability for everyday service on vehicles such as the Buick Century, Chevrolet Celebrity, Oldsmobile Cutlass Ciera, and Pontiac 6000.

Key Features

Specific-fit exhaust muffler for select GM vehicles
Oval steel body with aluminized finish
100% aluminized steel construction for improved service life versus low-carbon steel
Mechanical interior joints and spun-locked heads for added durability
Single inlet, single outlet design with offset inlet and center outlet configuration
Combination muffler type for direct replacement use
Walker SoundFX Direct Fit Part Number 18201

Detailed Description

Walker 18201 is a direct-fit exhaust muffler engineered around the original vehicle layout for select 1983-1992 GM midsize cars. It uses a 2.25-inch inlet, 2-inch outlet, and an oval steel body measuring 29.5 inches overall, with a 18-inch body length and 4.25-inch body height. The aluminized finish helps resist corrosion in normal service, while the offset inlet and center outlet configuration support OE-style routing.

This muffler is listed for applications including 1984-1985 Buick Century, 1984-1985 Chevrolet Celebrity, 1984-1985 Oldsmobile Cutlass Ciera, 1983-1985 Pontiac 6000, 1986-1992 Buick Century, 1986-1992 Oldsmobile Cutlass Ciera, 1988-1991 Pontiac 6000, 1988-1990 Oldsmobile Cutlass Cruiser, and 1988-1989 Chevrolet Celebrity. Walker SoundFX Direct Fit Part Number 18201 is a practical choice when replacing a worn factory muffler on these platforms.

This part cross-references AMS Automotive 6591 for the same application.

What It Helps Address

Exhaust noise from a rusted or internally damaged muffler
Restricted exhaust flow caused by corrosion or deterioration
Factory muffler replacement on select Buick, Chevrolet, Oldsmobile, and Pontiac models
Fitment issues from using a universal muffler in an OE-style exhaust layout
Loss of original exhaust routing due to a damaged offset-inlet, center-outlet muffler

Installation Notes and Tips

Confirm inlet diameter, outlet diameter, and offset/center configuration before installation. For welded exhaust assemblies, replace all required related parts as noted in the fitment data. Verify vehicle-specific fitment for the exact year, make, and model before ordering.

Fits 1987-1992 Buick Century, N/A
Fits 1986-1988 Buick Century, N/A, with Single Outlet
Fits 1984-1985 Buick Century, N/A, with Single Outlet
Fits 1986-1992 Oldsmobile Cutlass Ciera, N/A
Fits 1986-1992 Oldsmobile Cutlass Ciera, N/A, with Single Outlet
Fits 1988-1990 Oldsmobile Cutlass Cruiser, N/A
Fits 1988-1991 Pontiac 6000, N/A
Fits 1983-1985 Pontiac 6000, N/A, with Single Outlet
Fits 1988-1989 Chevrolet Celebrity, N/A
Fits 1987-1989 Chevrolet Celebrity, N/A, with Single Outlet
Fits 1986 Chevrolet Celebrity, N/A, with Single Outlet, High Output
Fits 1984-1985 Chevrolet Celebrity, N/A, with Single Outlet, High Output

Quality Assurance

Walker SoundFX Direct Fit mufflers are built with aluminized steel, mechanical interior joints, and spun-locked heads to support long-term service in exhaust applications. The direct-fit design is intended to match the original routing and mounting style used on the listed vehicles.

This part fits 105 vehicles

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

Year	Make	Model	Submodel	Body Type	Drive Type	Liters	Cylinders	Position	Notes
1992	Buick	Century	—	Coupe	—	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1992	Buick	Century	—	Coupe	—	3.3L	V6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1992	Buick	Century	—	Sedan	—	3.3L	V6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1992	Buick	Century	—	Sedan	—	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1992	Oldsmobile	Cutlass Ciera	—	Sedan	—	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1992	Oldsmobile	Cutlass Ciera	—	Coupe	—	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1992	Oldsmobile	Cutlass Ciera	—	Sedan	—	3.3L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1991	Buick	Century	—	Coupe	—	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1991	Buick	Century	—	Coupe	—	3.3L	V6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1991	Buick	Century	—	Sedan	—	3.3L	V6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1991	Buick	Century	—	Sedan	—	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1991	Oldsmobile	Cutlass Ciera	—	Sedan	—	3.3L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1991	Oldsmobile	Cutlass Ciera	—	Sedan	—	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1991	Oldsmobile	Cutlass Ciera	—	Coupe	—	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1991	Oldsmobile	Cutlass Ciera	—	Coupe	—	3.3L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1991	Pontiac	6000	—	Sedan	—	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1990	Buick	Century	—	Sedan	—	3.3L	V6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1990	Buick	Century	—	Sedan	—	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1990	Buick	Century	—	Coupe	—	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1990	Buick	Century	—	Coupe	—	3.3L	V6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1990	Oldsmobile	Cutlass Ciera	—	—	—	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1990	Oldsmobile	Cutlass Ciera	—	Sedan	—	3.3L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1990	Oldsmobile	Cutlass Ciera	—	Coupe	—	3.3L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1990	Oldsmobile	Cutlass Cruiser	—	—	—	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1990	Pontiac	6000	—	Sedan	FWD	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1989	Buick	Century	Limited	Coupe	—	3.3L	V6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1989	Buick	Century	Custom	Coupe	—	3.3L	V6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1989	Buick	Century	Custom	Sedan	—	3.3L	V6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1989	Buick	Century	Limited	Sedan	—	3.3L	V6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1989	Buick	Century	—	Sedan	—	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1989	Buick	Century	—	Coupe	—	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1989	Chevrolet	Celebrity	—	Sedan	—	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1989	Chevrolet	Celebrity	—	Sedan	—	2.8L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1989	Oldsmobile	Cutlass Ciera	—	—	—	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1989	Oldsmobile	Cutlass Ciera	—	Sedan	—	2.8L	V6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1989	Oldsmobile	Cutlass Ciera	—	Sedan	—	3.3L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1989	Oldsmobile	Cutlass Ciera	—	Coupe	—	2.8L	V6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1989	Oldsmobile	Cutlass Ciera	—	Coupe	—	3.3L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1989	Oldsmobile	Cutlass Cruiser	—	—	—	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1989	Pontiac	6000	—	Sedan	—	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1988	Buick	Century	Custom	Sedan	—	2.8L	V6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1988	Buick	Century	Custom	Coupe	—	3.8L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1988	Buick	Century	Custom	Coupe	—	2.8L	V6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1988	Buick	Century	Limited	Sedan	—	3.8L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1988	Buick	Century	Limited	Coupe	—	2.8L	V6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1988	Buick	Century	Limited	Coupe	—	3.8L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1988	Buick	Century	Limited	Sedan	—	2.8L	V6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1988	Buick	Century	Custom	Sedan	—	3.8L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1988	Buick	Century	—	Sedan	—	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1988	Buick	Century	—	Coupe	—	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1988	Chevrolet	Celebrity	—	Sedan	—	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1988	Chevrolet	Celebrity	—	Coupe	—	2.8L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1988	Chevrolet	Celebrity	—	Coupe	—	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1988	Chevrolet	Celebrity	—	Sedan	—	2.8L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1988	Oldsmobile	Cutlass Ciera	—	—	—	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1988	Oldsmobile	Cutlass Ciera	—	Sedan	—	2.8L	V6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1988	Oldsmobile	Cutlass Ciera	—	Sedan	—	3.8L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1988	Oldsmobile	Cutlass Ciera	—	Coupe	—	3.8L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1988	Oldsmobile	Cutlass Ciera	—	Coupe	—	2.8L	V6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1988	Oldsmobile	Cutlass Cruiser	—	—	—	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1988	Pontiac	6000	—	Sedan	FWD	2.5L	L4	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1987	Buick	Century	Custom	Sedan	—	2.8L	V6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1987	Buick	Century	Custom	Coupe	—	3.8L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1987	Buick	Century	Custom	Coupe	—	2.8L	V6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1987	Buick	Century	Limited	Sedan	—	3.8L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1987	Buick	Century	Limited	Coupe	—	2.8L	V6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1987	Buick	Century	Limited	Coupe	—	3.8L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1987	Buick	Century	Limited	Sedan	—	2.8L	V6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1987	Buick	Century	Custom	Sedan	—	3.8L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1987	Chevrolet	Celebrity	—	Coupe	—	2.8L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1987	Chevrolet	Celebrity	—	Sedan	—	2.8L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1987	Oldsmobile	Cutlass Ciera	—	Sedan	—	2.8L	V6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1987	Oldsmobile	Cutlass Ciera	—	Sedan	—	3.8L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1987	Oldsmobile	Cutlass Ciera	—	Coupe	—	3.8L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1987	Oldsmobile	Cutlass Ciera	—	Coupe	—	2.8L	V6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1986	Buick	Century	Custom	Coupe	—	3.8L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1986	Buick	Century	T-Type	Coupe	—	3.8L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1986	Buick	Century	T-Type	Sedan	—	3.8L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1986	Buick	Century	Limited	Sedan	—	3.8L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1986	Buick	Century	Limited	Coupe	—	3.8L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1986	Buick	Century	Custom	Sedan	—	3.8L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1986	Chevrolet	Celebrity	—	Sedan	—	2.8L	V6	N/A	with Single Outlet; High Output; If welded assembly, replace all required parts; SoundFX Direct Fit
1986	Chevrolet	Celebrity	—	Coupe	—	2.8L	V6	N/A	with Single Outlet; High Output; If welded assembly, replace all required parts; SoundFX Direct Fit
1986	Oldsmobile	Cutlass Ciera	—	Sedan	—	2.8L	V6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1986	Oldsmobile	Cutlass Ciera	—	Coupe	—	2.8L	V6	N/A	If welded assembly, replace all required parts; SoundFX Direct Fit
1986	Oldsmobile	Cutlass Ciera	—	Sedan	—	3.8L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1986	Oldsmobile	Cutlass Ciera	—	Coupe	—	3.8L	V6	N/A	with Single Outlet; If welded assembly, replace all required parts; SoundFX Direct Fit
1985	Buick	Century	—	Sedan	—	3.8L	V6	N/A	with Single Outlet; SoundFX Direct Fit
1985	Buick	Century	—	Coupe	—	3.8L	V6	N/A	with Single Outlet; SoundFX Direct Fit
1985	Chevrolet	Celebrity	—	Sedan	—	2.8L	V6	N/A	with Single Outlet; High Output; SoundFX Direct Fit
1985	Chevrolet	Celebrity	—	Coupe	—	2.8L	V6	N/A	with Single Outlet; High Output; SoundFX Direct Fit
1985	Oldsmobile	Cutlass Ciera	—	Sedan	—	3.8L	V6	N/A	with Single Outlet; SoundFX Direct Fit
1985	Oldsmobile	Cutlass Ciera	—	Coupe	—	3.8L	V6	N/A	with Single Outlet; SoundFX Direct Fit
1985	Pontiac	6000	—	Sedan	—	2.8L	V6	N/A	with Single Outlet; High Output; SoundFX Direct Fit
1985	Pontiac	6000	—	Coupe	—	2.8L	V6	N/A	with Single Outlet; High Output; SoundFX Direct Fit
1984	Buick	Century	—	Sedan	—	3.8L	V6	N/A	with Single Outlet; SoundFX Direct Fit
1984	Buick	Century	—	Coupe	—	3.8L	V6	N/A	with Single Outlet; SoundFX Direct Fit
1984	Chevrolet	Celebrity	—	Sedan	—	2.8L	V6	N/A	with Single Outlet; High Output; SoundFX Direct Fit
1984	Chevrolet	Celebrity	—	Coupe	—	2.8L	V6	N/A	with Single Outlet; High Output; SoundFX Direct Fit
1984	Oldsmobile	Cutlass Ciera	—	Sedan	—	3.8L	V6	N/A	with Single Outlet; SoundFX Direct Fit
1984	Oldsmobile	Cutlass Ciera	—	Coupe	—	3.8L	V6	N/A	with Single Outlet; SoundFX Direct Fit
1984	Pontiac	6000	—	Sedan	—	2.8L	V6	N/A	with Single Outlet; High Output; SoundFX Direct Fit
1984	Pontiac	6000	—	Coupe	—	2.8L	V6	N/A	with Single Outlet; High Output; SoundFX Direct Fit
1983	Pontiac	6000	—	Sedan	—	2.8L	V6	N/A	with Single Outlet; High Output; SoundFX Direct Fit
1983	Pontiac	6000	—	Coupe	—	2.8L	V6	N/A	with Single Outlet; High Output; SoundFX Direct Fit
No rows match your filter.

Directly replaces or cross-references 1 part number

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

AMS Automotive — 6591