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  5. Exhaust Muffler
  6. Walker 21577

Walker 21577 Exhaust Muffler

Walker 21577 Exhaust Muffler Image 1
Walker 21577 Exhaust Muffler Image 2
Walker 21577 Exhaust Muffler

Walker
Brand:Walker
Part Number: 21577
UPC: 086387215770
Weight: 15 lbs
Condition:New



On Sale:

$88.98

Availability:
6 in Stock
Warehouse: US-7
Quantity:

Product Information

Description:

Get the Walker 21577 Exhaust Muffler for your vehicle. Buy now and secure your purchase online!

The only broad-market muffler with 100% stainless-steel construction, Walker Quiet-Flow SS mufflers feature precision fit, superior flow and OE-style sound. Quiet-Flow SS mufflers are available for most domestic and import vehicles.

Features and Benefits:

  • BUILT TO LAST -- Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
  • BUY WITH CONFIDENCE -- Comes with Walker's limited lifetime warranty and exclusive 90-Day Safe and Sound Guarantee. Visit Walkerexhaust.com for details.
  • CORROSION RESISTANT STAINLESS STEEL -- The only broad-market muffler with 100% stainless-steel construction that delivers longer life versus aluminized mufflers while an internal drainage system reduces moisture collection
  • DESIGN VALIDATED -- Acoustic and flow tested for quality OE-style sound you can count on
  • EASY TO INSTALL -- Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation and doesn't require specialized fabrication and/or welding
  • PREMIUM ACOUSTIC CONTROL -- OE-style louvered tubes lower noise levels while OE-style domed heads help reduce radiated noise for premium factory-style sound quality compared to straight perforated tubes

Specifications:

Body Height:
7 in.
Body Length:
24 in.
Body Material:
Stainless Steel
Body Width:
9 in.
Finish:
Aluminized
Grade Type:
Regular
Inlet 1 Inside Diameter:
3 in.
Inlet 1 Type:
Pipe Connection
Inlet Configuration:
Offset
Inlet Inside Diameter:
3 in.
Inlet Offset:
1.625
Inlet Quantity:
1
Inlet Type:
Pipe Connection
Muffler Type:
Combination
Outlet 1 Outside Diameter:
2.75 in.
Outlet 1 Type:
Pipe Connection
Outlet Configuration:
Offset
Outlet Outside Diameter:
2.75 in.
Outlet Quantity:
1
Outlet Type:
Pipe Connection
Overall Length:
29 in.
Reversible:
No
Shape:
Oval
Tunable:
No
Universal Or Specific Fit:
Specific
General Motors #:
15092771
Country of Origin:
US

Select a vehicle to narrow Walker 21577 Exhaust Muffler fitment info!

Last Updated: 12/24/2023

Years Vehicle Per Vehicle Fit NotesFitment Notes

2007

 

2007

 
Chevrolet Avalanche

6.0L V8 Gas OHV
1
 
Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
 

Chevrolet Avalanche



6.0L V8 Gas OHV Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts

1 Per Vehicle

2013

 

2012

 

2011

 

2010

 

2013

 

2012

 

2011

 

2010

 
Chevrolet Silverado 1500

4.8L V8 Flex OHV
1
 
Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
 

Chevrolet Silverado 1500



4.8L V8 Flex OHV Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts

1 Per Vehicle

2013

 

2012

 

2011

 

2010

 

2009

 

2013

 

2012

 

2011

 

2010

 

2009

 
Chevrolet Silverado 1500

4.3L V6 Gas OHV
1
 
Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
 

Chevrolet Silverado 1500



4.3L V6 Gas OHV Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts

1 Per Vehicle

2013

 

2012

 

2011

 

2010

 

2009

 

2008

 

2007

 

2013

 

2012

 

2011

 

2010

 

2009

 

2008

 

2007

 
Chevrolet Silverado 1500

5.3L V8 Flex OHV
1
 
Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
 

Chevrolet Silverado 1500



5.3L V8 Flex OHV Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts

1 Per Vehicle

2009

 

2009

 
Chevrolet Silverado 1500

4.8L V8 Gas OHV
1
 
Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
 

Chevrolet Silverado 1500



4.8L V8 Gas OHV Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts

1 Per Vehicle

2009

 

2008

 

2007

 

2009

 

2008

 

2007

 
Chevrolet Silverado 1500

5.3L V8 Gas OHV
1
 
Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
 

Chevrolet Silverado 1500



5.3L V8 Gas OHV Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts

1 Per Vehicle

2008

 

2007

 

2008

 

2007

 
Chevrolet Silverado 1500

4.3L V6 Gas OHV
1
 
Quiet-Flow SS
Premium
Limited Lifetime Warranty
Wheel Base 133.0 In.
 

Chevrolet Silverado 1500



4.3L V6 Gas OHV Quiet-Flow SS
Premium
Limited Lifetime Warranty
Wheel Base 133.0 In.

1 Per Vehicle

2008

 

2007

 

2008

 

2007

 
Chevrolet Silverado 1500

4.8L V8 Gas OHV
1
 
Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 133.0 In.
 

Chevrolet Silverado 1500



4.8L V8 Gas OHV Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 133.0 In.

1 Per Vehicle

2008

 

2007

 

2008

 

2007

 
Chevrolet Silverado 1500

4.8L V8 Gas OHV
1
 
Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 143.5 In.
 

Chevrolet Silverado 1500



4.8L V8 Gas OHV Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 143.5 In.

1 Per Vehicle

2008

 

2007

 

2008

 

2007

 
Chevrolet Silverado 1500

6.0L V8 Gas OHV
1
 
Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
 

Chevrolet Silverado 1500



6.0L V8 Gas OHV Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts

1 Per Vehicle

2007

 

2007

 
Chevrolet Suburban 1500

6.0L V8 Gas OHV
1
 
Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
 

Chevrolet Suburban 1500



6.0L V8 Gas OHV Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts

1 Per Vehicle

2013

 

2012

 

2011

 

2010

 

2013

 

2012

 

2011

 

2010

 
GMC Sierra 1500

4.8L V8 Flex OHV
1
 
Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
 

GMC Sierra 1500



4.8L V8 Flex OHV Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts

1 Per Vehicle

2013

 

2012

 

2011

 

2010

 

2009

 

2013

 

2012

 

2011

 

2010

 

2009

 
GMC Sierra 1500

4.3L V6 Gas OHV
1
 
Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
 

GMC Sierra 1500



4.3L V6 Gas OHV Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts

1 Per Vehicle

2013

 

2012

 

2011

 

2010

 

2009

 

2008

 

2007

 

2013

 

2012

 

2011

 

2010

 

2009

 

2008

 

2007

 
GMC Sierra 1500

5.3L V8 Flex OHV
1
 
Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
 

GMC Sierra 1500



5.3L V8 Flex OHV Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts

1 Per Vehicle

2009

 

2009

 
GMC Sierra 1500

4.8L V8 Gas OHV
1
 
Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
 

GMC Sierra 1500



4.8L V8 Gas OHV Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts

1 Per Vehicle

2009

 

2008

 

2007

 

2009

 

2008

 

2007

 
GMC Sierra 1500

5.3L V8 Gas OHV
1
 
Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
 

GMC Sierra 1500



5.3L V8 Gas OHV Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts

1 Per Vehicle

2008

 

2007

 

2008

 

2007

 
GMC Sierra 1500

4.3L V6 Gas OHV
1
 
Quiet-Flow SS
Premium
Limited Lifetime Warranty
Wheel Base 133.0 In.
 

GMC Sierra 1500



4.3L V6 Gas OHV Quiet-Flow SS
Premium
Limited Lifetime Warranty
Wheel Base 133.0 In.

1 Per Vehicle

2008

 

2007

 

2008

 

2007

 
GMC Sierra 1500

4.8L V8 Gas OHV
1
 
Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 133.0 In.
 

GMC Sierra 1500



4.8L V8 Gas OHV Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 133.0 In.

1 Per Vehicle

2008

 

2007

 

2008

 

2007

 
GMC Sierra 1500

4.8L V8 Gas OHV
1
 
Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 143.5 In.
 

GMC Sierra 1500



4.8L V8 Gas OHV Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
Wheel Base 143.5 In.

1 Per Vehicle

2008

 

2007

 

2008

 

2007

 
GMC Sierra 1500

6.0L V8 Gas OHV
1
 
Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
 

GMC Sierra 1500



6.0L V8 Gas OHV Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts

1 Per Vehicle

2007

 

2007

 
GMC Yukon XL 1500

6.0L V8 Gas OHV
1
 
Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts
 

GMC Yukon XL 1500



6.0L V8 Gas OHV Quiet-Flow SS
Premium
Limited Lifetime Warranty
If welded assembly, replace all required parts

1 Per Vehicle