OE Quality
60-Day Returns

Walker 56230 Exhaust Resonator and Pipe Assembly
Overview of Walker Exhaust Resonator and Pipe Assembly 56230
The Walker 56230 Exhaust Resonator and Pipe Assembly is designed for specific GMC and Saturn models, including the Acadia and Outlook. This aluminized steel component offers durability and precise fitment to maintain your vehicle's exhaust performance.
- Compatible with GMC Acadia and Saturn Outlook
- Overall length of 60.75 inches for exact fit
- Oval muffler body measuring 21 inches in length, 11 inches in width, and 5.5 inches in height
- Constructed from aluminized steel for corrosion resistance
- Features a 2.25-inch outlet inside diameter
- Inlet with 2 bolt welded flange and single pipe outlet connection
Product Specifications and Features
This exhaust resonator and pipe assembly features a 21-inch muffler body length with an oval shape, providing efficient sound attenuation and exhaust flow. The steel pipe and body construction are aluminized to resist rust and extend service life. The inlet uses a 2 bolt welded flange for secure attachment, while the outlet is designed as a pipe connection with a 2.25-inch inside diameter, ensuring compatibility with the exhaust system of GMC Acadia and Saturn Outlook models. The overall length of 60.75 inches allows for proper alignment and fitment within the vehicle's exhaust layout.
Applications and Problem Solving
- Replacement for damaged or corroded exhaust resonator and pipe assembly on GMC Acadia and Saturn Outlook
- Helps reduce exhaust noise and vibrations
- Restores proper exhaust flow and backpressure for engine efficiency
- Prevents exhaust leaks that can affect emissions and performance
- Maintains structural integrity of the exhaust system
Installation Notes and Tips
Ensure compatibility by verifying the part number 56230 matches your vehicle's requirements. The 2 bolt welded flange inlet requires proper gasket and bolt torque to prevent leaks. Align the 2.25-inch outlet pipe connection carefully to avoid exhaust misalignment. Professional installation is recommended to maintain exhaust system integrity and performance.
Quality Assurance and Warranty
Walker exhaust components are manufactured to meet or exceed OEM standards, using aluminized steel for corrosion resistance and durability. While specific warranty details are not provided here, Walker products typically come with a limited warranty against defects in materials and workmanship. Refer to Walker's official documentation for exact warranty terms.
| Brand | Walker |
| Part Number | 56230 |
| Muffler Body Length | 21 |
| Pipe Material | Steel |
| Outlet Inside Diameter | 2.25 |
| Overall Length | 60.75 |
| Body 1 Height | 5.5 |
| Body 1 Length | 21 |
| Body 1 Shape | Oval |
| Body 1 Width | 11 |
| Body Material | Steel |
| Finish | Aluminized |
| Inlet Quantity | 1 |
| Inlet Type | 2 bolt welded flange |
| Outlet Quantity | 1 |
| Outlet Type | Pipe connection |
This part fits 4 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2008 | GMC | Acadia | 3.6L | V6 | N/A | If welded assembly, replace all required parts |
| 2008 | Saturn | Outlook | 3.6L | V6 | N/A | with Dual Exhaust; If welded assembly, replace all required parts |
| 2007 | GMC | Acadia | 3.6L | V6 | N/A | If welded assembly, replace all required parts |
| 2007 | Saturn | Outlook | 3.6L | V6 | N/A | with Dual Exhaust; If welded assembly, replace all required parts |
* 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.