HomeWalker 21504 Exhaust Muffler
Part #: 21504

Walker 21504 Exhaust Muffler

Quiet-Flow SS
6 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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Out of Stock
OE Direct Replacement — Bolt-on fit, no modifications needed
Quiet-Flow SS
Fitment: Chevrolet and GMC, Tahoe and Yukon
Easy Returns — Return within 60 days for a full refund
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Overview of Walker Quiet-Flow SS Exhaust Muffler 21504

The Walker Quiet-Flow SS Exhaust Muffler 21504 is designed specifically for Chevrolet Tahoe and GMC Yukon models. This oval-shaped muffler features a durable stainless steel body with an aluminized finish, engineered to provide reliable exhaust flow and noise reduction tailored to your vehicle's specifications.

  • Specific fit for Chevrolet Tahoe and GMC Yukon
  • Oval body shape with 9-inch width and 7-inch height
  • Stainless steel construction with aluminized finish for corrosion resistance
  • Combination muffler type with offset inlet and outlet pipe connections
  • Two 2-inch inside diameter inlets and one 2.75-inch outside diameter outlet
  • Overall length of 26 inches and body length of 22 inches
  • Non-reversible and non-tunable design for precise fitment

Detailed Product Description

The Walker Quiet-Flow SS 21504 exhaust muffler is engineered with a combination muffler design that balances sound attenuation and exhaust flow efficiency. Its oval shape and specific dimensions—9 inches wide, 7 inches high, and 26 inches overall length—ensure a precise fit for the exhaust system of Chevrolet Tahoe and GMC Yukon vehicles. The muffler features two offset 2-inch inside diameter pipe connection inlets spaced 1.625 inches apart, allowing for smooth integration with existing exhaust piping. The single outlet pipe connection has a 2.75-inch outside diameter and is also offset to match factory configurations. Constructed from stainless steel, the muffler body offers enhanced durability and resistance to corrosion, while the aluminized finish adds an extra layer of protection against environmental elements.

Walker Quiet-Flow SS Product Line

The Quiet-Flow SS line by Walker focuses on providing exhaust mufflers that combine stainless steel durability with sound reduction technology. This product line is designed to meet specific vehicle fitments, such as the Chevrolet Tahoe and GMC Yukon, ensuring compatibility and performance. The Quiet-Flow SS mufflers are engineered to maintain factory sound levels while offering improved corrosion resistance and longevity compared to standard mufflers.

Applications and Problem Solving

  • Replacement for worn or damaged mufflers on Chevrolet Tahoe and GMC Yukon
  • Reduces exhaust noise while maintaining proper exhaust flow
  • Prevents exhaust leaks caused by rust or corrosion
  • Restores factory exhaust system performance and sound quality
  • Helps maintain emissions compliance by ensuring proper exhaust routing

Installation Notes and Tips

This muffler is designed for specific fitment on Chevrolet Tahoe and GMC Yukon models, ensuring a direct replacement without modification. The offset inlet and outlet pipe connections require alignment with existing exhaust pipes sized at 2 inches for inlets and 2.75 inches for the outlet. Professional installation is recommended to ensure proper sealing and secure mounting. Note that this muffler is not reversible or tunable, so correct orientation during installation is essential.

Quality Assurance and Warranty

Walker manufactures the Quiet-Flow SS 21504 muffler with high-quality stainless steel and aluminized finishes to provide long-lasting durability. While specific warranty details are not provided here, Walker products typically come with manufacturer-backed warranties covering defects in materials and workmanship. For exact warranty information, refer to Walker's official documentation or contact the manufacturer directly.

BrandWalker
Part Number21504
PositionQuiet-Flow SS
Universal Or Specific FitSpecific
ShapeOval
Grade TypeRegular
Inlet Inside Diameter2
Body Width9
Outlet Quantity1
ReversibleNo
TunableNo
Overall Length26
Body Height7
Body Length22
Body MaterialStainless steel
FinishAluminized
Inlet 1 Inside Diameter2
Inlet 1 TypePipe connection
Inlet 2 Inside Diameter2
Inlet 2 TypePipe connection
Inlet ConfigurationOffset
Inlet Offset1.625
Inlet Quantity2
Inlet TypePipe connection
Muffler TypeCombination
Outlet 1 Outside Diameter2.75
Outlet 1 TypePipe connection
Outlet ConfigurationOffset
Outlet Outside Diameter2.75
Outlet TypePipe connection

This part fits 6 vehicles. Search below:

YearMakeModel# DoorsLitersCylindersPositionNotes
1999ChevroletTahoe2 Door5.7LV8N/APremium; with Federal Emission System; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
1998ChevroletTahoe2 Door5.7LV8N/APremium; with Federal Emission System; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
1997ChevroletTahoe2 Door5.7LV8N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
1997GMCYukon2 Door5.7LV8N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
1996ChevroletTahoe2 Door5.7LV8N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
1996GMCYukon2 Door5.7LV8N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

2228

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.