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Walker 55725 Exhaust Resonator and Pipe Assembly
| Brand | Walker 55725 |
|---|---|
| Body 1 Height | 4.25 |
| Body 1 Length | 14 |
| Body 1 Shape | Oval |
| Body 1 Width | 9.75 |
| Body Material | Steel |
| Finish | Aluminized |
| Inlet Type | 2 Bolt Welded Flange |
| Muffler Body Length | 14 |
| Outlet Outside Diameter | 2.25 |
| Outlet Type | Pipe Connection |
| Overall Length | 58 |
| Pipe Material | Steel |
| Fits | Mazda · 9 vehicles |
OE-style sound. Precise tuning helps deliver smooth flow characteristics.
Steel construction. Aluminized finish helps resist corrosion over time.
Exhaust resonator and pipe assembly for a direct-fit replacement.
Cross-references AP Exhaust 58101 for the same application. See all 1.
Walker 55725 Exhaust Resonator and Pipe Assembly
Walker 55725 is an exhaust resonator and pipe assembly built for OE-style fit, flow, and sound control. It is engineered for the 2007-2015 Mazda CX-9 and uses aluminized steel construction to support long-term exhaust service.
Key Features
- Part number: 55725
- Designed to match original-system sound characteristics
- Precise tuning for steady exhaust flow
- Aluminized steel body and pipe construction
- Oval resonator body with 14-inch body length
- Overall length: 58 inches
- Inlet: 2-bolt welded flange
- Outlet: 2.25-inch pipe connection
- Cross-reference: AP Exhaust 58101
Product Details
This Walker resonator and pipe assembly is built for direct replacement service on the Mazda CX-9 exhaust system. The oval steel body measures 4.25 inches high and 9.75 inches wide, with a 14-inch body length and a 58-inch overall length. Walker 55725 is tuned to deliver OE-style sound and consistent exhaust flow, making it a practical choice for restoring factory-like exhaust performance on the 2007-2015 Mazda CX-9.
Compatible With 2007-2015 Mazda CX-9, N/A. If the original assembly is welded in place, replace all required parts during service. Walker 55725 also cross-references AP Exhaust 58101 for the same application.
Common Issues This Part Can Address
- Exhaust noise that has become louder or harsher than factory levels
- Corrosion or rust damage in the resonator and pipe section
- Restricted exhaust flow from a deteriorated assembly
- Fitment problems caused by a damaged original flange or pipe connection
- Factory exhaust tone that no longer matches original sound characteristics
Installation Notes and Tips
Verify flange style, outlet diameter, and overall length before installation. This assembly uses a 2-bolt welded flange inlet and a pipe connection outlet, so confirm the existing exhaust layout on the Mazda CX-9 before removal. For welded assemblies, replace all required related parts during the repair to complete the exhaust service correctly.
Quality Assurance
Walker designs this resonator and pipe assembly to follow original-system fit, performance, and sound targets. The aluminized steel construction supports exhaust durability in everyday driving conditions.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2015 | Mazda | CX-9 | 3.7L | V6 | N/A | If welded assembly, replace all required parts |
| 2014 | Mazda | CX-9 | 3.7L | V6 | N/A | If welded assembly, replace all required parts |
| 2013 | Mazda | CX-9 | 3.7L | V6 | N/A | If welded assembly, replace all required parts |
| 2012 | Mazda | CX-9 | 3.7L | V6 | N/A | If welded assembly, replace all required parts |
| 2011 | Mazda | CX-9 | 3.7L | V6 | N/A | If welded assembly, replace all required parts |
| 2010 | Mazda | CX-9 | 3.7L | V6 | N/A | If welded assembly, replace all required parts |
| 2009 | Mazda | CX-9 | 3.7L | V6 | N/A | If welded assembly, replace all required parts |
| 2008 | Mazda | CX-9 | 3.7L | V6 | N/A | If welded assembly, replace all required parts |
| 2007 | Mazda | CX-9 | 3.5L | V6 | N/A | If welded assembly, replace all required parts |
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