Walker 18180 SoundFX Universal Muffler - 3" Inlet/Outlet, Aluminized Steel

Important Buyer Notes

• Fitment: Buyer is responsible for confirming this universal muffler fits their exact setup (exhaust piping diameter, routing, mounting, etc.) before purchase. No fitment tool available—verify measurements and compatibility using Walker's website, your vehicle's specs, forums, or a mechanic. We do not guarantee compatibility or provide fitment advice. Incorrect fitment or required modifications do 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).

Examples of Applications This Part Is Commonly Associated With (for informational purposes only; buyer must independently verify exact compatibility and modifications needed): Select older Chevrolet/GMC trucks (e.g., 1980s–1990s Blazer, Suburban R10/R20, G-series vans), or custom/heavy-duty exhaust builds requiring 3" piping. Always measure your current exhaust and confirm against manufacturer resources.

Walker 18180 SoundFX Universal Exhaust Muffler Versatile universal muffler for custom exhaust builds or replacements: This SoundFX model from Walker is constructed with aluminized steel for solid corrosion resistance and longer service life than low-carbon steel. Chambered design provides a deeper, more noticeable tone with efficient flow—ideal for DIY adaptations or heavy-duty applications on compatible setups.

Key Features & Benefits

• Universal fit – center inlet/outlet with adaptable design (may require cutting, clamping, welding, or adapters to match piping)
• Aluminized steel construction – resists rust better than basic steel for reliable longevity
• SoundFX acoustics – enhanced exhaust note with controlled drone and good performance
• Oval shape & spun-locked heads – added strength and rupture resistance for demanding use

Dimensions & Specs

• Overall Length: 29.00"
• Body Length: 22.00"
• Body Width: 9.75"
• Body Height: 4.25"
• Inlet Diameter: 3.00" (ID, offset)
• Outlet Diameter: 3.00" (ID, center/offset)
• Material: Aluminized Steel
• Inlet/Outlet: 1 in / 1 out (reversible/no hangers included)

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.