Walker 18823 SoundFX Direct Fit Muffler - 2.75" Inlet/Outlet, Aluminized Steel

Important Buyer Notes

• 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.
• 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.
• Free Shipping on this item (continental US only; exclusions may apply).

Common Vehicle Examples (for informational purposes only):  This muffler is often used for select 1999–2007 Chevrolet Silverado 1500 / GMC Sierra 1500 (various trims, including Classic models), and other compatible GM trucks (always double-check your exact specs against Walker resources or your vehicle's specs—no guarantee provided).

Walker 18823 SoundFX Direct Fit Exhaust Muffler Upgrade your exhaust with this direct-fit SoundFX muffler from Walker. Aluminized steel construction delivers solid corrosion resistance and durability, while the internal design provides a deeper, more noticeable tone than stock—ideal for everyday trucks and SUVs on compatible applications.

Key Features & Benefits

• Direct-fit OE replacement – precision routing, hangers, and connections for bolt-on installation (no modifications needed on listed vehicles)
• Aluminized steel body – better rust protection than basic steel for long-term reliability
• SoundFX performance – enhanced exhaust note with controlled flow and minimal drone
• Spun-locked heads & durable build – added strength against ruptures and wear

Dimensions & Specs

• Overall Length: 29.00"
• Body Length: 24.00"
• Body Width: 9.00"
• Body Height: 7.00"
• Inlet Diameter: 2.75" (ID, offset)
• Outlet Diameter: 2.75" (OD, offset)
• Material: Aluminized Steel
• Inlet/Outlet: 1 in / 1 out

Orders ship via USPS, FedEx or UPS depending on the purchase price, size and weight.

Will only ship to the lower 48 states. No international shipping.