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Walker 21641 Exhaust Muffler
| Brand | Walker 21641 |
|---|---|
| Inlet Outside Diameter | 2 |
| Muffler Type | Reflection |
| Universal Or Specific Fit | Specific |
| Shape | Oval |
| Grade Type | Regular |
| Inlet Inside Diameter | 1 |
| Body Width | 11 |
| Inlet Quantity | 1 |
| Outlet Inside Diameter | 2.25 |
| Outlet Quantity | 1 |
| Reversible | No |
| Tunable | No |
| Overall Length | 23 |
| Body Height | 5.5 |
| Body Length | 21 |
| Body Material | Stainless steel |
| Finish | Aluminized |
| Inlet 1 Inside Diameter | 1 |
| Inlet 1 Outside Diameter | 2 |
| Inlet 1 Type | Pipe connection |
| Inlet Configuration | Offset |
| Inlet Offset | 3.75 |
| Inlet Type | Pipe connection |
| Outlet 1 Inside Diameter | 2.25 |
| Outlet 1 Type | Pipe connection |
| Outlet Configuration | Offset |
| Outlet Type | Pipe connection |
| Product line | Quiet-Flow SS |
| Fits | Pontiac and Toyota · 9 vehicles |
100% stainless-steel construction. Resists corrosion for long-lasting exhaust performance.
Precision fit. Delivers an OE-style sound with superior flow.
Oval reflection muffler. Engineered for a specific fit and consistent exhaust tone.
Cross-references AP Exhaust 2593 and 228-289 for the same application. See all 2.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Walker Quiet-Flow SS Muffler Overview
Walker Quiet-Flow SS muffler part number 21641 is a specific-fit exhaust muffler built with stainless-steel body construction and an aluminized finish. It is engineered for OE-style sound control and steady exhaust flow, making it a direct replacement choice for select Toyota Matrix and Pontiac Vibe applications.
For shoppers searching for a 2009-2013 Toyota Matrix muffler or a 2009-2010 Pontiac Vibe exhaust muffler, this Walker Quiet-Flow SS 21641 offers a fitment-focused solution with offset pipe connections and an oval body profile.
Key Features
- Walker Quiet-Flow SS line with 100% stainless-steel body construction
- Specific-fit exhaust muffler for direct application matching
- Oval muffler shape with reflection-style internal design
- Offset inlet and outlet configuration for listed vehicle applications
- 2 in. inlet outside diameter and 2.25 in. outlet inside diameter
- Overall length: 23 in.; body length: 21 in.; body width: 11 in.; body height: 5.5 in.
- Part number 21641 for catalog and fitment lookup
Product Details
Walker Quiet-Flow SS mufflers are positioned as a stainless-steel exhaust replacement line for domestic and import vehicles, and part number 21641 follows that format with a specific-fit design. The oval body, offset inlet configuration, and pipe connection ends support a clean replacement on the listed Matrix and Vibe applications while maintaining OE-style sound characteristics. This part cross-references AP Exhaust 2593 for the same application.
Use Walker 21641 when you need a replacement muffler for 2009-2013 Toyota Matrix or 2009-2010 Pontiac Vibe exhaust service. The fitment data identifies these vehicles with N/A position, so the application should be matched to the existing exhaust layout before installation.
Common Problems This Part Addresses
- Exhaust noise from a worn or rusted muffler
- Corrosion-related muffler failure in the exhaust system
- Restricted exhaust flow caused by internal muffler damage
- Fitment issues when replacing a factory-style muffler on Matrix or Vibe models
- Loss of OE-style exhaust tone after muffler deterioration
Installation Notes
Confirm inlet and outlet diameters, offset configuration, and overall muffler dimensions before installation. This part uses pipe connection ends and is not reversible or tunable, so orientation should match the vehicle exhaust routing. If the original system uses a welded assembly, replace all required related parts as noted in the fitment data. Fits 2009-2013 Toyota Matrix, N/A. Fits 2009-2010 Pontiac Vibe, N/A.
Quality Assurance
Walker Quiet-Flow SS is the brand’s stainless-steel muffler line, built around precision fit and OE-style sound control. Part number 21641 is listed for the specified Toyota Matrix and Pontiac Vibe applications and is supported by the fitment data provided.
| Year | Make | Model | Submodel | Drive Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2013 | Toyota | Matrix | — | — | 1.8L | L4 | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2012 | Toyota | Matrix | — | — | 1.8L | L4 | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2011 | Toyota | Matrix | — | — | 1.8L | L4 | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2010 | Pontiac | Vibe | Base | FWD | 2.4L | L4 | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2010 | Pontiac | Vibe | — | — | 1.8L | L4 | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2010 | Toyota | Matrix | — | — | 1.8L | L4 | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2009 | Pontiac | Vibe | Base | FWD | 2.4L | L4 | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2009 | Pontiac | Vibe | — | — | 1.8L | L4 | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2009 | Toyota | Matrix | — | — | 1.8L | L4 | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
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