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Part #: 21559

Walker 21559 Exhaust Muffler

Quiet-Flow SS
⚙️ 3 vehicles fit this part
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Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦Quiet-Flow SS
🚗Fitment: Ford, Freestyle
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker Quiet-Flow SS Exhaust Muffler 21559

The Walker Quiet-Flow SS Exhaust Muffler 21559 is designed specifically for Ford Freestyle models, providing a precise fit and reliable performance. Crafted from stainless steel with an aluminized finish, this muffler offers durability and corrosion resistance for extended service life.

  • Specific fit for Ford Freestyle vehicles
  • Oval-shaped muffler body measuring 11 inches wide and 5.5 inches high
  • Stainless steel construction with aluminized finish for corrosion resistance
  • Combination muffler type with offset inlet and outlet configuration
  • Inlet and outlet pipe connections with 2.25-inch diameter
  • Overall length of 25.5 inches and body length of 17 inches
  • Two outlet tips with 2.25-inch outside diameter

Detailed Product Description

The Walker Quiet-Flow SS 21559 exhaust muffler is engineered to meet the specific requirements of the Ford Freestyle, ensuring optimal exhaust flow and noise reduction. Its oval body shape and combination muffler design balance sound attenuation with performance. The muffler features a single offset inlet pipe connection with a 2.25-inch inside diameter and dual offset outlet tips, each with a 2.25-inch outside diameter, facilitating efficient exhaust gas exit. The stainless steel body with an aluminized finish enhances resistance to rust and corrosion, making it suitable for long-term use in various driving conditions.

The Quiet-Flow SS product line focuses on delivering quiet operation and durability through premium stainless steel materials and precise engineering. This muffler is not reversible or tunable, reflecting its design for a specific fit and function on the Ford Freestyle.

Common Applications and Problem Solving

  • Replacement for worn or damaged mufflers on Ford Freestyle models
  • Reduction of exhaust noise and vibration
  • Improvement of exhaust flow efficiency
  • Prevention of rust and corrosion-related exhaust failures
  • Restoration of factory exhaust system performance

Installation Notes and Tips

Installation of the Walker Quiet-Flow SS 21559 muffler requires compatibility with the Ford Freestyle exhaust system. Ensure the inlet and outlet pipe diameters match existing exhaust pipes (2.25 inches). The muffler’s offset inlet and outlet configuration should be aligned correctly to maintain proper exhaust flow. Professional installation is recommended to verify fitment and secure connections.

Quality Assurance and Warranty

Walker’s Quiet-Flow SS mufflers are manufactured to meet industry standards for durability and performance. The stainless steel construction and aluminized finish provide enhanced corrosion resistance. While specific warranty details are not provided here, Walker products typically come with a limited warranty against defects in materials and workmanship.

BrandWalker
Part Number21559
PositionQuiet-Flow SS
Universal Or Specific FitSpecific
ShapeOval
Grade TypeRegular
Inlet Inside Diameter2.25
Body Width11
Inlet Quantity1
ReversibleNo
TunableNo
Overall Length25.5
Body Height5.5
Body Length17
Body MaterialStainless steel
FinishAluminized
Inlet 1 Inside Diameter2.25
Inlet 1 TypePipe connection
Inlet ConfigurationOffset
Inlet Offset3.75
Inlet TypePipe connection
Muffler TypeCombination
Outlet 1 Outside Diameter2.25
Outlet 1 TypeTip
Outlet 2 Outside Diameter2.25
Outlet ConfigurationOffset
Outlet Outside Diameter2.25
Outlet Quantity2
Outlet TypeTip

This part fits 3 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2007FordFreestyle3.0LV6N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2006FordFreestyle3.0LV6N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2005FordFreestyle3.0LV6N/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:

2156056190733478267

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