Walker
Quiet-Flow SS

Walker 21410 Exhaust Muffler

Brand Walker 21410
Universal Or Specific Fit Specific
Shape Oval
Grade Type Regular
Inlet Inside Diameter 2.25
Body Width 8.8125
Inlet Quantity 1
Outlet Inside Diameter 2.25
Outlet Quantity 1
Reversible No
Tunable No
Overall Length 32
Body Height 4.25
Body Length 28
Body Material Stainless steel
Finish Aluminized
Inlet 1 Inside Diameter 2.25
Inlet 1 Type Pipe connection
Inlet Configuration Offset
Inlet Offset 2.625
Inlet Type Pipe connection
Muffler Type Combination
Outlet 1 Inside Diameter 2.25
Outlet 1 Type Pipe connection
Outlet Configuration Center
Outlet Type Pipe connection
Product line Quiet-Flow SS
Fits Buick, Chevrolet, Oldsmobile, Pontiac, and Saturn · 28 vehicles

100% stainless steel. Corrosion-resistant construction helps it stand up to harsh exhaust conditions.

Precision fit. Engineered for a specific fit with straightforward installation.

OE-style sound. Delivers a refined exhaust note without harsh drone.

Cross-references Anchor 2235 and Anchor 2571 for the same application. See all 2.

$116.08Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $116.08
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Walker Quiet-Flow SS Muffler for OE-Style Replacement

Walker Quiet-Flow SS muffler Part Number 21410 is a specific-fit exhaust muffler built with 100% stainless-steel construction for corrosion resistance and long-term service. It is engineered for a precise fit, steady exhaust flow, and an OE-style sound profile on select GM minivan applications.

  • Specific-fit exhaust muffler for direct replacement applications
  • Oval muffler body with 2.25-inch inlet and 2.25-inch outlet
  • 100% stainless-steel body construction
  • Offset inlet and center outlet pipe connection layout
  • Overall length: 32 inches; body length: 28 inches
  • Quiet-Flow SS product line focused on fit, flow, and OE-style sound
  • Part Number 21410

Fitment Details

  • Fits 2002-2009 Pontiac Montana, N/A, without Sport Package; Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
  • Fits 2007-2008 Chevrolet Uplander, N/A, without Sport Package; Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
  • Fits 2005-2007 Buick Terraza, N/A, without Sport Package; Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
  • Fits 2005-2007 Saturn Relay, N/A, Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
  • Fits 2005-2006 Buick Terraza, N/A, Premium; with Sport Package; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
  • Fits 2005-2006 Chevrolet Uplander, N/A, Premium; with Sport Package; Limited Lifetime Warranty; Quiet-Flow SS
  • Fits 2005-2006 Pontiac Montana, N/A, Premium; with Sport Package; Limited Lifetime Warranty; Quiet-Flow SS
  • Fits 2005-2006 Saturn Relay, N/A, Premium; with Sport Package; Limited Lifetime Warranty; Quiet-Flow SS
  • Fits 2002-2004 Oldsmobile Silhouette, N/A, Premium; Limited Lifetime Warranty; Quiet-Flow SS

What This Muffler Helps Address

  • Exhaust noise that has become louder due to a worn muffler
  • Rust-related muffler deterioration on stainless-steel replacement applications
  • Fitment issues when replacing an OE-style muffler on Pontiac Montana, Chevrolet Uplander, Buick Terraza, Saturn Relay, or Oldsmobile Silhouette
  • Exhaust flow restriction caused by a damaged or internally failing muffler
  • Sound quality changes after exhaust system wear or repair

Installation Notes and Tips

Confirm the inlet and outlet configuration before ordering: this muffler uses a 2.25-inch offset inlet and a 2.25-inch center outlet with pipe connections. For welded assemblies, replace all required parts in the system to maintain proper alignment and sealing. This part cross-references Anchor 2235 and 2571 for the same application.

Quality Assurance

Walker Quiet-Flow SS mufflers are built with stainless-steel construction and are part of Walker’s Quiet-Flow SS line, which is positioned for precise fit, improved exhaust flow, and OE-style sound. Part Number 21410 is listed with limited lifetime warranty coverage in the fitment notes for the applicable vehicles.

This part fits 28 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelDrive TypeLitersCylindersWheel BasePositionNotes
2009PontiacMontana——3.9LV6—N/Awithout Sport Package; Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2008ChevroletUplander——3.9LV6—N/Awithout Sport Package; Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2008PontiacMontana——3.9LV6—N/Awithout Sport Package; Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2007BuickTerraza——3.9LV6—N/Awithout Sport Package; Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2007ChevroletUplander——3.9LV6—N/Awithout Sport Package; Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2007PontiacMontana——3.9LV6—N/Awithout Sport Package; Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2007SaturnRelay——3.9LV6—N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2006BuickTerraza—FWD3.5LV6—N/APremium; with Sport Package; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2006BuickTerraza—AWD3.5LV6—N/Awithout Sport Package; Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2006ChevroletUplander—FWD3.5LV6121.1"N/APremium; with Sport Package; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2006PontiacMontana—FWD3.5LV6—N/APremium; with Sport Package; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2006PontiacMontana——3.5LV6—N/Awithout Sport Package; Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2006SaturnRelay—AWD3.5LV6—N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2006SaturnRelay—FWD3.5LV6—N/APremium; with Sport Package; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2005BuickTerraza—FWD3.5LV6—N/APremium; with Sport Package; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2005BuickTerraza—AWD3.5LV6—N/Awithout Sport Package; Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2005ChevroletUplander—FWD3.5LV6121.1"N/APremium; with Sport Package; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2005PontiacMontanaBaseFWD3.4LV6—N/Awithout Sport Package; Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2005PontiacMontanaSV6FWD3.5LV6—N/APremium; with Sport Package; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2005PontiacMontanaSV6—3.5LV6—N/Awithout Sport Package; Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2005SaturnRelay—AWD3.5LV6—N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2005SaturnRelay—FWD3.5LV6—N/APremium; with Sport Package; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2004OldsmobileSilhouette—FWD3.4LV6—N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2004PontiacMontana—FWD3.4LV6—N/Awithout Sport Package; Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2003OldsmobileSilhouette—FWD3.4LV6—N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2003PontiacMontana—FWD3.4LV6—N/Awithout Sport Package; Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2002OldsmobileSilhouette—FWD3.4LV6—N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2002PontiacMontana—FWD3.4LV6—N/Awithout Sport Package; Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Anchor — 2235Anchor — 2571