Product Description
The WALKER 21485 Quiet-Flow® SS Exhaust Muffler is a premium stainless-steel, direct-fit replacement engineered to restore OE-style performance and sound on the Chrysler Pacifica equipped with the 3.5L V6 engine. Featuring 100% stainless-steel construction, this Quiet-Flow SS series muffler offers superior durability and corrosion resistance compared to aluminized alternatives.
Its OE-style domed heads, louvered tubes, and internal partitions deliver factory-correct acoustic tuning and optimized exhaust flow. Spun-locked heads and mechanically joined tubes allow for thermal expansion without distortion, ensuring stability and long service life. Designed for hassle-free installation, the 21485 includes OE-style pipe routing for an exact fit without welding.
Key Features
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100% Stainless-Steel Body for class-leading corrosion resistance
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Direct-Fit Design with OE-style pipe routing for easy bolt-on installation
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Premium Acoustic Control using OE-style louvered tubes and domed heads
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Mechanically Joined Internal Tubes maximize durability under heat cycles
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Internal Drainage System helps prevent moisture buildup
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Acoustic & Flow Tested to ensure OE-style exhaust performance
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Backed by Walker’s Limited Lifetime Warranty and 90-Day Safe & Sound® Guarantee
Technical Specifications
| Specification |
Detail |
| Shape |
Oval |
| Finish |
Aluminized |
| Body Material |
Stainless Steel |
| Inlet Type |
Pipe Connection |
| Outlet Type |
Pipe Connection |
| Inlet Inside Diameter |
2.500 in |
| Outlet Outside Diameter |
2.500 in |
| Inlet Location |
Offset |
| Inlet Quantity |
1 |
| Outlet Location |
Offset |
| Outlet Quantity |
1 |
| Body Height |
5.500 in |
| Body Length |
16.000 in |
| Body Width |
11.000 in |
| Overall Length |
28.250 in |
| Inlet Offset |
3.500 in |
| Reversible |
No |
| Tunable |
No |
| Universal or Specific Fit |
Specific |
| Grade Type |
Premium |
Vehicle Compatibility
(One muffler required per vehicle unless otherwise noted.)
Chrysler
Pacifica
Installation & Warranty Notes
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Direct-fit bolt-on replacement—no welding required
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Reuses factory mounting points
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Designed for OE backpressure and sound characteristics
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Inspect exhaust gaskets, clamps, and hangers during installation
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Covered by Walker’s limited lifetime warranty and 90-Day Safe & Sound® Guarantee
