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Walker 55180 Exhaust Resonator and Pipe Assembly
Walker 55180 Exhaust Resonator Assembly
Walker 55180 is an aluminized steel exhaust resonator and pipe assembly built to match the original system’s fit, flow, and sound profile. It is a direct-fit option for 1998-1999 Subaru Legacy applications, excluding GT Series models, and uses welded 2-bolt flange connections for a secure exhaust seal.
- Part number: 55180
- Exhaust resonator and pipe assembly for OE-style replacement
- Fits 1998-1999 Subaru Legacy, excluding GT Series
- Aluminized steel body and pipe construction
- Round resonator body with 10-inch body length
- Overall length: 55.5 inches
- 1 inlet and 1 outlet with 2-bolt welded flanges
OE-Style Fit and Sound
Walker 55180 is engineered for Subaru Legacy exhaust repair where original sound quality and flow characteristics matter. The resonator uses precise tuning to help maintain factory-like exhaust tone while replacing worn or damaged factory components. For buyers searching for a Subaru Legacy resonator assembly, Walker 55180 provides a direct replacement format with steel pipe material and aluminized finish for everyday exhaust service.
This part cross-references AP Exhaust 58463 and BRExhaust 280-907 for the same application.
Common Issues This Part Can Address
- Exhaust noise from a cracked or rusted resonator assembly
- Loss of factory exhaust tone on a 1998-1999 Subaru Legacy
- Corrosion-related failure in the resonator body or pipe
- Leakage at worn 2-bolt flange connections
- Restricted exhaust flow caused by internal deterioration
Installation Notes
Verify vehicle fitment before installation: Fits 1998-1999 Subaru Legacy, excluding GT Series. Confirm flange alignment, pipe routing, and overall length against the original exhaust assembly before welding or bolting in place. Because this unit uses 2-bolt welded flanges, proper gasket and fastener condition should be checked during installation.
Quality Assurance
Walker designs this resonator assembly to follow OE-style fit, performance, and sound targets using tuned exhaust technology and aluminized steel construction. Part number 55180 is built as a replacement exhaust component for Subaru Legacy service work where factory-style operation is required.
| Brand | Walker |
| Part Number | 55180 |
| Muffler Body Length | 10 |
| Pipe Material | Steel |
| Overall Length | 55.5 |
| Body 1 Height | 3 |
| Body 1 Length | 10 |
| Body 1 Shape | Round |
| Body 1 Width | 3 |
| Body 2 Height | 3 |
| Body 2 Length | 10 |
| Body 2 Width | 3 |
| Body Material | Steel |
| Finish | Aluminized |
| Inlet Quantity | 1 |
| Inlet Type | 2 bolt welded flange |
| Outlet Quantity | 1 |
| Outlet Type | 2 bolt welded flange |
This part fits 2 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1999 | Subaru | Legacy | Outback | 2.5L | H4 | N/A | Except GT Series |
| 1998 | Subaru | Legacy | Outback | 2.5L | H4 | N/A | Except GT Series |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.