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The WALKER 21543 Quiet-Flow® SS Exhaust Muffler delivers factory-style sound, durability, and fitment for Dodge Dakota, Mitsubishi Raider, and Ram Dakota applications. As part of Walker’s premium Quiet-Flow® SS line, this muffler features a 100% stainless-steel muffler body, providing outstanding corrosion resistance and longevity compared to aluminized alternatives.
Designed as a direct-fit bolt-on solution, the 21543 includes OE-style routing and mounting geometry for fast, accurate installation with no need for welding or fabrication. Internal louvered tubes and domed heads offer excellent acoustic control, producing OE-style sound levels while maintaining smooth exhaust flow. Mechanically joined tubes and spun-locked heads allow thermal expansion without distortion, ensuring long service life.
This premium-grade muffler is backed by Walker’s limited lifetime warranty and 90-Day Safe and Sound® Guarantee, ensuring durability and performance you can trust.
Corrosion-Resistant Stainless-Steel Muffler Body for long service life
Direct-Fit Bolt-On Design with OE-style routing for easy installation
OE-Style Sound Quality from louvered tube construction
Durable Construction with spun-locked heads and mechanically joined tubes
Internal Drainage System helps reduce moisture accumulation
Validated for Flow and Acoustics to ensure OE-style performance
Backed by a Limited Lifetime Warranty
| 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 Inside Diameter | 2.500 in |
| Body Height | 7.000 in |
| Body Length | 30.000 in |
| Body Width | 9.000 in |
| Inlet Location | Offset |
| Outlet Location | Offset |
| Inlet Quantity | 1 |
| Outlet Quantity | 1 |
| Hanger Included | No |
| Reversible | No |
| Overall Length | 36.000 in |
| Inlet Offset | 1.625 in |
| Universal or Specific Fit | Specific |
| Grade Type | Premium |
2005–2010 – 3.7L V6 226cid
2005–2010 – 4.7L V8 287cid
2006–2009 – 3.7L V6 226cid
2006–2007 – 4.7L V8 287cid
2011 – 3.7L V6 226cid
2011 – 4.7L V8 287cid
Direct-fit, bolt-on design—no welding required
Stainless-steel muffler body ensures superior corrosion resistance
OE-style sound and performance
Protected by Walker’s limited lifetime warranty and 90-Day Safe & Sound® Guarantee
Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.
Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.
Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.
Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.
Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.
Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.
Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).
