Quiet-Flow SS Muffler
Hover over the image to zoom in
Share this:

Walker Quiet-Flow SS Muffler

Part No. 21723 Warranty Details  

Fit of this part varies by vehicle & equipment specs Type of Fit

Walker® is the only aftermarket exhaust manufacturer in North America with the capability to combine industry-leading coverage with a direct fit OE-style replacement, 100% structural stainless steel muffler, which provides over three times the average lifespan of competitors' aluminized replacement mufflers. Walker® Quiet-FlowSS is available for a vast majority of top-selling domestic and foreign-nameplate applications. In addition to Walker's renowned precision fit, superior flow, and OE-style sound, these mufflers feature 409 stainless steel heads, shell, bushings, louvered tubes and partitions. Walker® Quiet-FlowSS mufflers have a limited lifetime warranty and a 90-day Safe and Sound® guarantee. See www.walkerexhaust.com for warranty and guarantee details.

Product Features:
  • 100% structural stainless steel construction
  • 3X the life expectancy vs. typical aluminized mufflers
  • OE-style louvered tube technology lowers noise level for premium OE-style sound compared to straight perforated tubes
  • Precise OE-style routing & hanger positions for quick & easy installation
  • Comprehensive internal drainage system for corrosion resistance
  • OE-style domed heads help reduce radiated noise compared to flat heads
  • Spun-locked heads to help prevent rupture
  • Limited Lifetime Warranty and exclusive 90-Day Safe & Sound Guarantee
Back To Top
Inlet Configuration:Centered
Inlet Inside Diameter:2.500 in
Inlet Quantity:1
Internal Construction:Combination
OE Replacement:Direct OE Replacement
Outlet Configuration:Offset
Outlet Inside Diameter:2.500 in
Outlet Quantity:1
Outlet Type:Pipe Connection
Overall Length:37.000 in
Shell Diameter Height:6.000 in
Shell Diameter Width:6.000 in
Shell Length:30.000 in
Shell Material:Stainless Steel
Shell Shape:Round

Do you have questions about this product?


Ask a question, get answers from real customers and in-house experts. For further assistance, please review your support options on our Contact Us page.

2 Questions | 2 Answers
Displaying questions 1-2
  • Q:

    witch in is in? witch in is out
    Asked on 12/22/2013 by earl from globe az

    1 answer



      Hi Earl, great question! This muffler is not reversible and it has got inlet location as center and outlet location as offset.

      Answered on 12/25/2013 by Vincent from AAP
  • Q:

    is this muffler as quiet as emo
    Asked on 11/21/2012 by cl from chapin

    1 answer



      This Walker Quiet-Flow Muffler (Part No. 21723) is designed using original equipment style cross sections for precision fit and original equipment style sound. Product features: All-aluminized steel and new CF coating deliver exceptional durability. Three louvered tuning tubes create premium acoustics. Three partition baffles and spun-locked heads improve structural support and integrity. Thicker, original equipment style rods and brackets. For further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and one of our representatives would be more than happy to assist you.

      Answered on 11/21/2012 by Steve from AAP
Displaying questions 1-2

Do you have a question about this product? 

Check out the specials in our monthly flyer.
Disclaimer We strive to keep all information accurate and up-to-date; however, product availability, pricing, promotions and store hours are subject to change without notice. Please contact Customer Care if you have any questions or corrections.