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The WALKER 18951 SoundFX® Exhaust Muffler is engineered as a direct-fit replacement for select Ford Ranger and Mazda B-Series trucks. Constructed from 100% aluminized steel, it provides improved corrosion resistance and long-lasting durability compared to traditional low-carbon steel mufflers.
Its mechanically joined tubes, spun-locked heads, and OE-style internal louvered tubes offer excellent noise control and maintain factory-style exhaust tone. Designed for seamless installation, this muffler uses OE-style hangers and pipe routing for a quick, no-weld fit.
Aluminized Steel Construction for corrosion resistance
Direct-Fit Installation — no welding required
OE-Style Louvered Tubes for proper backpressure and factory sound
Internal Drainage System reduces moisture accumulation
Spun-Locked Heads & Internal Partitions for enhanced durability
Engineered for Long Service Life
| Specification | Detail |
|---|---|
| Shape | Oval |
| Finish | Aluminized |
| Body Material | Steel |
| Inlet Type | Pipe Connection |
| Outlet Type | Pipe Connection |
| Inlet Inside Diameter | 2.000 in |
| Outlet Inside Diameter | 2.000 in |
| Body Height | 7.000 in |
| Body Length | 19.000 in |
| Body Width | 9.000 in |
| Hanger Included | Yes |
| Inlet Location | Offset |
| Outlet Location | Offset |
| Inlet Quantity | 1 |
| Outlet Quantity | 1 |
| Reversible | No |
| Tunable | No |
| Overall Length | 22.500 in |
| Inlet Offset | 2.625 in |
| Universal or Specific Fit | Specific |
| Grade Type | Premium |
2004–2011 – 2.3L L4 140cid
2004–2008 – 3.0L V6 2986cc / 182cid
2004–2011 – 4.0L V6 245cid
2005–2009 – 2.3L L4 140cid
2004–2007 – 3.0L V6 2986cc / 182cid
2004–2009 – 4.0L V6 245cid
Direct bolt-on installation using existing hanger locations
No cutting or welding required
Designed for factory-correct fitment and sound
Built to withstand long-term truck and light-utility use
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).
