Important Buyer Notes
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Fitment: Buyer is responsible for confirming this muffler fits their exact vehicle (year, make, model, engine, trim, exhaust configuration, etc.) before purchase. No fitment tool available—verify using Walker's website/catalog, vehicle manual, VIN, forums, or a mechanic. We do not guarantee compatibility or provide fitment advice. Incorrect fitment does not qualify for returns/exchanges under our 30-day policy.
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Warranty/Returns: No warranty provided by seller or manufacturer. Sold new but as-is. 30-day returns only for unwanted items or clear wrong-part errors (after buyer verification). No returns/exchanges for defects, performance issues (e.g., sound quality, leaks, rust), installation problems, or fitment mismatches.
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Free Shipping on this item (continental US only; exclusions may apply).
Common Vehicle Examples (for informational purposes only): This muffler is often used on select 1998–2004 Ford Mustang models (always double-check your exact specs against Walker resources or your vehicle's specs—no guarantee provided.
Walker 18971 SoundFX Direct Fit Exhaust Muffler Boost your exhaust with this direct-fit, OE-style muffler from Walker's SoundFX line. Engineered for a deeper, more aggressive sound than stock while maintaining good flow and easy installation. Aluminized steel construction offers solid corrosion resistance and durability for everyday driving on compatible vehicles.
Key Features & Benefits
- Direct-fit design – precision OE replacement, no fabrication required on listed applications
- Aluminized steel body – resists rust better than basic steel for longer life
- SoundFX performance – noticeable rumble and improved tone without excessive drone
- Easy bolt-on upgrade – great for DIY exhaust repairs or mild sound enhancements
Dimensions & Specs
- Overall Length: ~19" (approximate; confirm with your setup)
- Body Length: 16.00"
- Body Width: 8.81"
- Body Height: 4.25"
- Inlet Diameter: 2.00" (ID, offset)
- Outlet Diameter: 2.00" (ID, offset)
- Inlet/Outlet Quantity: 1 in / 1 out
- Material: Aluminized Steel
