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AP Exhaust 700371 Exhaust Muffler - Rear
AP Exhaust 700371 Muffler Overview
The AP Exhaust 700371 is a durable exhaust muffler designed specifically for Buick Park Avenue models. Constructed from aluminized steel, this muffler offers reliable performance and corrosion resistance for regular driving conditions.
- Body dimensions: 16" length, 11" width, 4.5" height
- Oval-shaped baffled muffler with an open chamber (O/c) configuration
- Inlet pipe diameter: 2.25" with right center inlet location
- Single inlet and outlet pipe design; outlet diameter 2" centered
- Heat shield not attached; regular grade type for standard use
- Sound level comparable to original equipment (OE)
Detailed Product Description
The AP Exhaust 700371 muffler is engineered to meet the exhaust requirements of Buick Park Avenue vehicles. Its aluminized steel body provides a balance of strength and corrosion resistance, suitable for everyday driving environments. The muffler features a baffled design with an open chamber configuration, which helps reduce exhaust noise to levels comparable with the original equipment. The oval shape and precise body dimensions ensure proper fitment and efficient exhaust flow.
The inlet pipe, measuring 2.25 inches in diameter, is positioned at the right center, while the outlet pipe is centered with a 2-inch diameter. This single inlet and outlet setup supports smooth exhaust gas flow and helps maintain engine performance. The muffler is part of the Msl series and is designed for regular grade use without a heat shield attachment.
Common Applications and Problem Solving
- Replacement for worn or damaged mufflers on Buick Park Avenue models
- Restores proper exhaust flow and reduces excessive noise
- Helps address exhaust leaks caused by rust or corrosion
- Improves vehicle emissions by maintaining exhaust system integrity
- Prevents rattling or vibration issues related to muffler failure
Installation Notes and Tips
- Compatible with Buick Park Avenue exhaust systems matching inlet/outlet sizes
- Ensure proper alignment of inlet and outlet pipes for secure fitment
- Use appropriate clamps or welding methods for installation
- Inspect surrounding exhaust components for wear during replacement
- Professional installation recommended for optimal performance and safety
Quality Assurance and Warranty
AP Exhaust manufactures the 700371 muffler with aluminized steel to provide corrosion resistance and durability under regular driving conditions. This part meets OEM sound level standards, ensuring a consistent driving experience. While specific warranty details are not provided, AP Exhaust products typically adhere to industry quality standards for fit and function on compatible Buick Park Avenue vehicles.
| Brand | AP Exhaust |
|---|---|
| Part Number | 700371 |
| Body Height | 4.5 |
| Body Length | 16 |
| Body Material | Aluminized Steel |
| Body Width | 11 |
| Grade Type | Regular |
| Heat Shield Attached | No |
| Inlet Inside Diameter | 2.25 |
| Inlet Location | Right Center |
| Inlet Type | Pipe |
| Muffler Configuration | O/C |
| Muffler Type | Baffled |
| Outlet Inside Diameter | 2 |
| Outlet Location | Center |
| Outlet Type | Pipe |
| Overall Length | 20 |
| Series | MSL |
| Shape | Oval |
| Sound Level | OE comparable |
| Tunable | No |
This part fits 9 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2005 | Buick | Park Avenue | 3.8L | V6 | Rear | DIRECT FIT MSL/MAXIMUM Muffler; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced. |
| 2004 | Buick | Park Avenue | 3.8L | V6 | Rear | DIRECT FIT MSL/MAXIMUM Muffler; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced. |
| 2003 | Buick | Park Avenue | 3.8L | V6 | Rear | DIRECT FIT MSL/MAXIMUM Muffler; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced. |
| 2002 | Buick | Park Avenue | 3.8L | V6 | Rear | DIRECT FIT MSL/MAXIMUM Muffler; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced. |
| 2001 | Buick | Park Avenue | 3.8L | V6 | Rear | DIRECT FIT MSL/MAXIMUM Muffler; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced. |
| 2000 | Buick | Park Avenue | 3.8L | V6 | Rear | DIRECT FIT MSL/MAXIMUM Muffler; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced. |
| 1999 | Buick | Park Avenue | 3.8L | V6 | Rear | DIRECT FIT MSL/MAXIMUM Muffler; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced. |
| 1998 | Buick | Park Avenue | 3.8L | V6 | Rear | DIRECT FIT MSL/MAXIMUM Muffler; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced. |
| 1997 | Buick | Park Avenue | 3.8L | V6 | Rear | DIRECT FIT MSL/MAXIMUM Muffler; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced. |
* 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.