Quiet-Flow Muffler
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Walker Quiet-Flow Muffler

Part No. 21105 Warranty Details  

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Combines industry-leading coverage with a direct fit OE-style replacement muffler. Quiet-Flow is available for top-selling domestic and foreign-nameplate applications, and offers precision fit, superior flow, and OE-style sound. Quiet-Flow mufflers have a limited lifetime warranty and a 90-day Safe and Sound® guarantee.

Product Features:
  • 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
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Inlet Configuration:Offset
Inlet Inside Diameter:1.750 in
Inlet Quantity:1
Internal Construction:Combination
OE Replacement:Direct OE Replacement
Outlet Configuration:Offset
Outlet Inside Diameter:1.688 in
Outlet Quantity:1
Outlet Type:Pipe Connection
Overall Length:27.500 in
Shell Diameter Height:5.500 in
Shell Diameter Width:11.000 in
Shell Length:18.000 in
Shell Material:Stainless Steel
Shell Shape:Oval


by PowerReviews
WalkerQuiet-Flow Muffler

(based on 1 review)

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Reviewed by 1 customer

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(0 of 1 customers found this review helpful)


very good service


from akron ohio

About Me Auto Enthusiast

Verified Buyer


  • Easy To Install


    Best Uses

    • Everyday Driving

    Comments about Walker Quiet-Flow Muffler:

    very good service

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    1 Question | 1 Answer
    Displaying question 1
    • Q:

      This muffler does not come with a mounting flange. It will have to be joined with a coupling. Does kit include needed mounting hardware to do so?
      Asked on 9/14/2013 by SueIntegra from Maryland

      1 answer



        Unfortunately, this Walker Quiet-Flow SS Stainless Steel Direct-Fit Muffler - part# 21105 does not include mounting hardware. For any further assistance, please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

        Answered on 9/16/2013 by Vincent from AAP
    Displaying question 1

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