Product images and videos are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Moderate — 2–4 hours
Overview
Constructed from aluminized steel, this muffler inhibits corrosion and is built to last with internal partitions and mechanically joined tubes to minimize distortion from temperature changes. Its spun-locked heads and OE-style spot welds provide stability and a longer service life.
Show original supplier description
Vehicle Symptoms
- Loud exhaust noise at highway speeds
- Droning sound inside cabin
- Rattling from undercarriage
- Visible rust or hole in muffler
- Exhaust leak hissing sound
Relevant Conversations
- Replace muffler on 2005 Honda Accord
- Loud exhaust noise when accelerating
- Best direct fit muffler for sound reduction
- Walker SoundFX exhaust review
- Exhaust drone solution for truck
- Muffler replacement cost DIY
- How to install direct fit muffler
- Muffler vs resonator difference
- Exhaust leak symptoms and fix
- Buy Walker 18557 muffler online
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Walker Exhaust |
| Part Number | W00D 18557 |
Videos
Walker quiet flow muffler install on the JK Wrangler - really quieted down the rig!
Walker Emissions Control | What are Walker Mufflers Made Of?
Walker Quiet Flow Mufflers
Walker® Exhaust Systems | Walker® Quiet-Flow® Stainless Steel Muffler Features
Walker Muffler Quiet Flow Changed Everything
Inexpensive Walker SoundFX Universal Muffler on a V8 Engine
What's hidden inside an old broken car exhaust rear muffler?
Walker Quiet-Flow SS muffler 93 Ford Bronco before/after For Sale. Make me offer!
99-07 Chevy 1500 No Weld Exhaust DIY / Walker Quiet Flow SS / silverado sierra suburban avalanche
Ford Ecoboost Autozone Muffler🤷🏻♂️
Walker® Quiet-Flow® SS Muffler I Direct-Fit, Easy to Install
Walker Exhaust Z71
walker quiet flow ss 21093 exhaust muffler
78 Malibu 2.5" Walker Quiet Flow SS mufflers
About MOTORMIA
Buy with Confidence
Returns & Fitment
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return PolicyShipping
Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.
View Full Shipping Policy