/live/media/WK/WK_21571_Fro.jpg)
Will it fit your vehicle?
Confirm before you buy. Free return shipping if it doesn't fit.
Walker 21571 Exhaust Muffler - Left
| Brand | Walker 21571 |
|---|---|
| Position | Left |
| Universal Or Specific Fit | Specific |
| Shape | Oval |
| Grade Type | Regular |
| Inlet Inside Diameter | 1.875 |
| Body Width | 9 |
| Inlet Quantity | 1 |
| Outlet Quantity | 1 |
| Reversible | No |
| Tunable | No |
| Overall Length | 32.5 |
| Body Height | 7 |
| Body Length | 14 |
| Body Material | Stainless steel |
| Finish | Aluminized |
| Inlet 1 Inside Diameter | 1.875 |
| Inlet 1 Type | Pipe connection |
| Inlet Configuration | Offset |
| Inlet Offset | 1.625 |
| Inlet Type | Pipe connection |
| Muffler Type | Combination |
| Outlet 1 Outside Diameter | 2.25 |
| Outlet 1 Type | Tip |
| Outlet Configuration | Offset |
| Outlet Outside Diameter | 2.25 |
| Outlet Type | Tip |
| Product line | Quiet-Flow SS |
| Fits | Chevrolet · 10 vehicles |
100% stainless steel. Built for corrosion resistance and long service life.
Precision fit. Engineered for a clean, OE-style installation.
OE-style sound. Delivers a refined exhaust note without excess drone.
Cross-references Global Parts Distributors LLC 2521 for the same application. See all 1.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Walker Quiet-Flow SS Muffler for Impala
Walker Quiet-Flow SS Part Number 21571 is a specific-fit exhaust muffler built for 2006-2011 Chevrolet Impala, left-side applications. It combines stainless-steel body construction with an oval, combination-style design to support OE-style sound and steady exhaust flow.
Key Features
- Specific-fit muffler for 2006-2011 Chevrolet Impala, left
- 100% stainless-steel body construction for corrosion resistance
- Oval muffler shape with a combination muffler design
- Offset inlet and offset outlet configuration
- 1.875-inch inlet inside diameter and 2.25-inch outlet outside diameter
- Walker Quiet-Flow SS line engineered for precision fit and OE-style sound
- Part Number 21571 for application matching and catalog lookup
Product Details
Walker Quiet-Flow SS mufflers are part of Walker’s stainless-steel exhaust line, focused on direct-fit replacement for domestic and import vehicles. This Quiet-Flow SS muffler uses a stainless-steel body with an aluminized finish, an oval profile, and a 32.5-inch overall length to match the listed application. For drivers searching for a 2006-2011 Chevrolet Impala left muffler replacement, Part Number 21571 provides a fitment-specific option with offset pipe connections and a 2.25-inch tip outlet.
This part cross-references Global Parts Distributors LLC 2521 for the same application.
What It Helps Address
- Rusted or deteriorated factory muffler housing
- Exhaust noise that no longer matches OE sound levels
- Restricted exhaust flow caused by internal muffler wear
- Fitment issues from using a universal muffler on a specific vehicle
- Replacement needs for a left-side Chevrolet Impala exhaust repair
Installation Notes and Tips
Fits 2006-2011 Chevrolet Impala, left. Verify inlet and outlet orientation, offset dimensions, and pipe diameter before installation. If the vehicle uses a welded assembly, replace all required related exhaust parts during service to maintain proper alignment and sealing. Confirm the existing exhaust layout matches the listed specific-fit configuration before final installation.
Quality Assurance
Walker Quiet-Flow SS is positioned as a stainless-steel replacement muffler line with precision fit and OE-style sound characteristics. Part Number 21571 is cataloged for the listed Chevrolet Impala application and is supported by Walker’s Quiet-Flow SS product line specifications.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2011 | Chevrolet | Impala | 3.9L | V6 | Left | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2010 | Chevrolet | Impala | 3.9L | V6 | Left | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2009 | Chevrolet | Impala | 5.3L | V8 | Left | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2009 | Chevrolet | Impala | 3.9L | V6 | Left | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2008 | Chevrolet | Impala | 5.3L | V8 | Left | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2008 | Chevrolet | Impala | 3.9L | V6 | Left | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2007 | Chevrolet | Impala | 5.3L | V8 | Left | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2007 | Chevrolet | Impala | 3.9L | V6 | Left | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2006 | Chevrolet | Impala | 5.3L | V8 | Left | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2006 | Chevrolet | Impala | 3.9L | V6 | Left | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| No rows match your filter. | ||||||