Walker 21683 Exhaust Muffler
OE Quality 60-Day Returns
Walker
 Quiet-Flow SS

Walker 21683 Exhaust Muffler

Brand Walker 21683
Muffler Type Reflection
Universal Or Specific Fit Specific
Shape Oval
Grade Type Regular
Inlet Inside Diameter 2.5
Body Width 11.5
Inlet Quantity 1
Outlet Inside Diameter 2.25
Outlet Quantity 1
Reversible No
Tunable No
Overall Length 24
Body Height 6
Body Length 20
Body Material Stainless steel
Finish Aluminized
Inlet 1 Inside Diameter 2.5
Inlet 1 Type Pipe connection
Inlet Configuration Offset
Inlet Offset 3.5
Inlet Type Pipe connection
Outlet 1 Inside Diameter 2.25
Outlet 1 Type Pipe connection
Outlet Configuration Offset
Outlet Type Pipe connection
Product line Quiet-Flow SS
Fits Buick, Chevrolet, GMC, and Saturn · 55 vehicles

100% stainless steel. Corrosion-resistant construction helps the muffler stand up to harsh conditions.

OE-style sound. Delivers a factory-like exhaust note with superior flow.

Precision fit. Specific-fit design makes installation straightforward.

Cross-references Hayden 2583 for the same application. See all 1.

$84.54Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $84.54
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Exhaust Muffler options

Walker Quiet-Flow SS Muffler 21683

Walker Quiet-Flow SS 21683 is a specific-fit exhaust muffler built with 100% stainless-steel construction for corrosion resistance and long-term service. It uses a reflection-style muffler design with OE-style sound characteristics, precision fit, and balanced flow for select Buick, Chevrolet, GMC, and Saturn applications.

Key Features

  • Specific-fit exhaust muffler for direct application matching
  • Reflection muffler type for controlled exhaust sound
  • Oval body shape with 11.5-inch body width, 6-inch body height, and 20-inch body length
  • 100% stainless-steel body construction
  • Offset inlet and outlet configuration for vehicle-specific routing
  • 2.5-inch inlet inside diameter and 2.25-inch outlet inside diameter
  • 24-inch overall length for OE-style packaging
  • Aluminized finish

Product Details

The Walker Quiet-Flow SS line focuses on stainless-steel mufflers with precise fitment and factory-like sound control. Part number 21683 is engineered for select 2007-2017 Buick Enclave, Chevrolet Traverse, GMC Acadia, GMC Acadia Limited, and Saturn Outlook applications, including premium trims and single- or dual-exhaust configurations where listed. This part cross-references Hayden 2583 for the same application.

What This Muffler Helps Address

  • Exhaust noise that has increased due to a worn or damaged muffler
  • Rust-related muffler deterioration in stainless-steel replacement applications
  • Fitment issues when replacing an OE-style muffler on select crossover SUVs
  • Exhaust flow restriction caused by internal muffler wear or damage
  • Factory sound restoration after exhaust system service

Installation Notes and Fitment

Compatible With 2008-2017 Buick Enclave, N/A; 2009-2017 Chevrolet Traverse, N/A; 2013-2017 Chevrolet Traverse, N/A; 2009-2012 Chevrolet Traverse, N/A; 2009-2016 GMC Acadia, N/A; 2017 GMC Acadia Limited, N/A; 2009-2010 Saturn Outlook, N/A; and 2007-2008 Saturn Outlook, N/A. Review the vehicle’s exhaust configuration before installation, since fitment notes include premium trims, single exhaust, dual exhaust, and welded assembly requirements on certain applications. If the system is welded, replace all required related parts during service to complete the repair correctly.

Quality Assurance

Walker Quiet-Flow SS mufflers are positioned as OE-style replacement components with stainless-steel construction, precision fit, and controlled exhaust sound. Limited lifetime warranty coverage is listed for the applicable fitments noted above.

Related reading

This part fits 55 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersPositionNotes
2017BuickEnclave—3.6LV6N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2017ChevroletTraverseLT3.6LV6N/APremium; with Single Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2017ChevroletTraverseLS3.6LV6N/APremium; with Single Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2017ChevroletTraversePremier3.6LV6N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2017ChevroletTraverseLT3.6LV6N/APremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2017GMCAcadia Limited—3.6LV6N/APremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2016BuickEnclave—3.6LV6N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2016ChevroletTraverseLT3.6LV6N/APremium; with Single Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2016ChevroletTraverseLS3.6LV6N/APremium; with Single Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2016ChevroletTraverseLT3.6LV6N/APremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2016ChevroletTraverseLTZ3.6LV6N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2016GMCAcadia—3.6LV6N/APremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2015BuickEnclave—3.6LV6N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2015ChevroletTraverseLT3.6LV6N/APremium; with Single Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2015ChevroletTraverseLS3.6LV6N/APremium; with Single Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2015ChevroletTraverseLT3.6LV6N/APremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2015ChevroletTraverseLTZ3.6LV6N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2015GMCAcadia—3.6LV6N/APremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2014BuickEnclave—3.6LV6N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2014ChevroletTraverseLT3.6LV6N/APremium; with Single Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2014ChevroletTraverseLS3.6LV6N/APremium; with Single Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2014ChevroletTraverseLT3.6LV6N/APremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2014ChevroletTraverseLTZ3.6LV6N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2014GMCAcadia—3.6LV6N/APremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2013BuickEnclave—3.6LV6N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2013ChevroletTraverseLT3.6LV6N/APremium; with Single Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2013ChevroletTraverseLS3.6LV6N/APremium; with Single Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2013ChevroletTraverseLT3.6LV6N/APremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2013ChevroletTraverseLTZ3.6LV6N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2013GMCAcadia—3.6LV6N/APremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2012BuickEnclave—3.6LV6N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2012ChevroletTraverseLT3.6LV6N/APremium; with Single Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2012ChevroletTraverseLS3.6LV6N/APremium; with Single Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2012ChevroletTraverseLTZ3.6LV6N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2012GMCAcadia—3.6LV6N/APremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2011BuickEnclave—3.6LV6N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2011ChevroletTraverseLT3.6LV6N/APremium; with Single Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2011ChevroletTraverseLS3.6LV6N/APremium; with Single Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2011ChevroletTraverseLTZ3.6LV6N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2011GMCAcadia—3.6LV6N/APremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2010BuickEnclave—3.6LV6N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2010ChevroletTraverseLT3.6LV6N/APremium; with Single Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2010ChevroletTraverseLS3.6LV6N/APremium; with Single Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2010ChevroletTraverseLTZ3.6LV6N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2010GMCAcadia—3.6LV6N/APremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2010SaturnOutlookXE3.6LV6N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2009BuickEnclave—3.6LV6N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2009ChevroletTraverseLT3.6LV6N/APremium; with Single Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2009ChevroletTraverseLS3.6LV6N/APremium; with Single Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2009ChevroletTraverseLTZ3.6LV6N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2009GMCAcadia—3.6LV6N/APremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2009SaturnOutlookXE3.6LV6N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2008BuickEnclave—3.6LV6N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2008SaturnOutlook—3.6LV6N/APremium; with Single Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2007SaturnOutlook—3.6LV6N/APremium; with Single Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Hayden — 2583