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WALKER - Exhaust Muffler - 21289

WALKER
WAL21289
In stock
Muffler
$180.16 $152.99
Product Description The Walker® Quiet-Flow® SS 21289 muffler delivers long-lasting performance, excellent corrosion resistance, and OE-style...
$152.99

WALKER - Exhaust Muffler - 21289

Product Description

The Walker® Quiet-Flow® SS 21289 muffler delivers long-lasting performance, excellent corrosion resistance, and OE-style sound for GM full-size SUVs. Constructed with 100% stainless-steel internals and an aluminized exterior, this premium muffler provides superior durability over standard aluminized-only units.

OE-style hangers and pipe routing ensure an easy bolt-on installation. Louvered tubes and domed heads help reduce radiated noise, giving your vehicle quiet, factory-grade exhaust sound. Each unit is acoustically and flow-tested to meet or exceed OE performance.


Key Features

  • 100% Stainless-Steel Construction inside for maximum corrosion protection

  • Direct-Fit Design: OE-style hangers & layout for fast installation

  • Premium Acoustic Control: Louvered tubes reduce radiated sound

  • Durable, Long-Life Build: Spun-locked heads and mechanical joints resist distortion

  • OE-Style Performance: Designed and tested to match factory sound & flow

  • Backed by Walker's Limited Lifetime Warranty


Technical Specifications

Specification Detail
Shape Oval
Finish Aluminized
Inlet Type Pipe Connection
Outlet Type Pipe Connection
Inlet Inside Diameter 2.000 in
Body Height 7.000 in
Body Length 22.000 in
Body Width 9.000 in
Overall Length 26.000 in
Inlet Location Offset
Outlet Location Offset
Inlet Quantity 2
Outlet Quantity 1
Body Material Stainless Steel
Hanger Included Yes
Reversible No
Outlet Outside Diameter 2.750 in
Universal or Specific Fit Specific
Grade Type Premium
Inlet Offset 1.625 in

Vehicle Compatibility

Cadillac

  • Escalade (1999–2000)

    • 5.7L V8 (350cid)

Chevrolet

  • Tahoe (1996–2000)

    • 5.7L V8 (350cid)

GMC

  • Yukon (1996–2000)

    • 5.7L V8 (350cid)


Installation & Notes

  • Direct-fit design: Uses factory-style hangers and routing for easy installation

  • No welding required: Bolts directly to OEM exhaust components

  • Non-reversible: Must be installed in the correct flow direction

  • Inspect clamps & gaskets: Replace if worn or corroded for proper sealing

  • Stainless-steel internal construction extends life in harsh climates

  • Professional installation recommended

  • Always verify inlet configuration (dual) matches your original part

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Shipping

Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.

Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.

Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.

Returns

Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.

Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.

Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.

Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).

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