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

Walker Quiet-Flow SS Muffler

Part No. 21194 Warranty Details  

See if this part fits a specific vehicle.

Check Vehicle 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:Offset
Inlet Outside Diameter:2.750 in
Inlet Quantity:1
Internal Construction:Combination
OE Replacement:Direct OE Replacement
Outlet Configuration:Centered
Outlet Inside Diameter:2.250 in
Outlet Quantity:1
Outlet Type:Pipe Connection
Overall Length:25.500 in
Shell Diameter Height:4.250 in
Shell Diameter Width:9.750 in
Shell Length:20.000 in
Shell Material:Stainless Steel
Shell Shape:Oval


by PowerReviews
WalkerQuiet-Flow SS Muffler

(based on 1 review)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Reviewed by 1 customer

Displaying review 1

Back to top

(1 of 1 customers found this review helpful)


Great muffler, but


from Belleville Michigan

About Me Mechanic


  • Easy To Install
  • Great Sound


    Best Uses

    • Uses USEless

    Comments about Walker Quiet-Flow SS Muffler:

    Great muffler, excellent construction, sounds good but: I installed the 21194 direct fit stainless steel muffler on my 98 4WD Blazer in 2010 and it rattled immediately. Two years later, it finally wore a hole through the shell from hitting the frame. Advance honored the warranty and I installed a second muffler.... same thing, hits the frame, (constantly). Not just a little, we're talking 35 pounds of force to get it way from the frame. Installed an AP 700187 direct fit muffler designed for the application and it fit perfectly. Walker shell diameter is 9.750". AP shell is 8.750" which gives ample clearance from the frame and no more rattle. Now I have to deal with getting my money back for the incorrect Walker design muffler.

    Comment on this reviewHelp Icon

    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.