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The products below fit your GMC 8 Cyl 8.1L

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GMC 8 Cyl 8.1L Exhaust Muffler

About

An exhaust muffler is a device that connects to the exhaust pipe of an internal combustion engine that reduces its exhaust noise. It is designed with a resonating chamber that causes destructive interference. As the exhaust gases pass to the exhaust muffler, the opposite sound waves cancel each other out, which in turn results in a reduced noise output. A damaged exhaust muffler will produce annoying noise when the engine is running. Auto Parts Network hosts a wide variety of parts that will improve the performance of you vehicle. Hide

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$184.88
List Price:
$240.34
IN STOCK
OUT OF STOCK
Auto Part # 21576 Walker
  • Exhaust Muffler Notes:
    1. Muffler; Quiet-Flow; 143.5 Inch, 153 Inch W.B.; EXC LEV; Fed. Emiss.; OE Diameter Muffler w/3 Inch Inlet & Outlet; See Installation Note; If Welded Assembly, Replace All Required Parts; Single Outlet Muffler replaces Dual Outlet Muffler

Additional Features

2003 - 2004 GMC Sierra 2500 HD Exhaust Muffler 8 Cyl 8.1L Walker
- Additional Product Notes and Features:
  • Shipping Options:
    • Ships Ground, Two-Day, or Next-Day
    • This Product is eligible for International Shipping
  • Manufacturer:
    • Walker
  • Suggested Purchase Quantity: 1
    • Most jobs typically require 1 of this item.
View all Details for Walker 21576

 [-] Hide  [+] Show   Additional GMC Fitment Information:
Vehicle Submodel Aspiration Fuel Type Cylinder Head Type Block Engine CID CC
2003 - GMC Sierra 2500 HD SLT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2002 - GMC Sierra 2500 HD SLE Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2001 - GMC Sierra 2500 HD SL Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2006 - GMC Sierra 2500 HD SL Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2006 - GMC Sierra 2500 HD SLE Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2006 - GMC Sierra 2500 HD SLT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2006 - GMC Sierra 2500 HD WT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2005 - GMC Sierra 2500 HD SLT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2004 - GMC Sierra 2500 HD WT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
$104.53
List Price:
$134.84
IN STOCK
OUT OF STOCK
Auto Part # 21533 Walker
  • Exhaust Muffler Notes:
    1. Muffler; Quiet-Flow; 133 Inch W.B.; EXC. LEV; Fed. Emiss.; If Welded Assembly, Replace All Required Parts; Small Diameter Muffler w/2 1/2 Inch Inlet; Used w/41974 to Connect O.E. Converter Pipe

Additional Features

2002 - 2003 GMC Sierra 2500 HD Exhaust Muffler 8 Cyl 8.1L Walker
- Additional Product Notes and Features:
  • Walker Quiet-Flow mufflers and muffler assemblies are constructed of stainless steel assuring a long life. They are designed using OE-style cross sections for a precision fit and OE-sound. Sophisticated internal routing provides superior flow and delivers the show room OE-sound you experienced when the vehicle was new.

  • Shipping Options:
    • Ships Ground, Two-Day, or Next-Day
    • This Product is eligible for International Shipping
  • Manufacturer:
    • Walker
  • Suggested Purchase Quantity: 1
    • Most jobs typically require 1 of this item.
View all Details for Walker 21533

 [-] Hide  [+] Show   Additional GMC Fitment Information:
Vehicle Submodel Aspiration Fuel Type Cylinder Head Type Block Engine CID CC
2002 - GMC Sierra 2500 HD SLE Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2001 - GMC Sierra 2500 HD SL Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2006 - GMC Sierra 2500 HD SL Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2006 - GMC Sierra 2500 HD SLE Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2006 - GMC Sierra 2500 HD SLT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2006 - GMC Sierra 2500 HD WT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2005 - GMC Sierra 2500 HD SLT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2004 - GMC Sierra 2500 HD WT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2003 - GMC Sierra 2500 HD SLT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
$104.53
List Price:
$134.84
IN STOCK
OUT OF STOCK
Auto Part # 21533 Walker
  • Exhaust Muffler Notes:
    1. Muffler; Quiet-Flow; EXCEPT CAB & CHASSIS; 133 Inch W.B.; 9900 G.V.W.R.; Excludes LEV.; Fed. Emiss.; w/2 1/2 Inch Inlet; See Installation Note; Small diameter muffler; If Welded Assembly, Replace All Required Parts; Used w/41974 to connect with O.E. Converter Pipe

Additional Features

2006 GMC Sierra 3500 Exhaust Muffler 8 Cyl 8.1L Walker
- Additional Product Notes and Features:
  • Walker Quiet-Flow mufflers and muffler assemblies are constructed of stainless steel assuring a long life. They are designed using OE-style cross sections for a precision fit and OE-sound. Sophisticated internal routing provides superior flow and delivers the show room OE-sound you experienced when the vehicle was new.

  • Shipping Options:
    • Ships Ground, Two-Day, or Next-Day
    • This Product is eligible for International Shipping
  • Manufacturer:
    • Walker
  • Suggested Purchase Quantity: 1
    • Most jobs typically require 1 of this item.
View all Details for Walker 21533

 [-] Hide  [+] Show   Additional GMC Fitment Information:
Vehicle Submodel Aspiration Fuel Type Cylinder Head Type Block Engine CID CC
2006 - GMC Sierra 3500 SLT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2006 - GMC Sierra 3500 WT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2006 - GMC Sierra 3500 SL Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2006 - GMC Sierra 3500 SLE Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
$184.88
List Price:
$240.34
IN STOCK
OUT OF STOCK
Auto Part # 21576 Walker
  • Exhaust Muffler Notes:
    1. Muffler; Quiet-Flow; EXCEPT CAB & CHASSIS; 133 Inch W.B.; 9900 G.V.W.R.; Excludes LEV.; Fed. Emiss.; w/3 inch Inlet and Outlet; See Installation Note; If Welded Assembly, Replace All Required Parts; O.E. diameter Muffler w/3 Inch Inlet & Outlet; Single Outlet muffler replaces Dual Outlet

Additional Features

2006 GMC Sierra 3500 Exhaust Muffler 8 Cyl 8.1L Walker
- Additional Product Notes and Features:
  • Shipping Options:
    • Ships Ground, Two-Day, or Next-Day
    • This Product is eligible for International Shipping
  • Manufacturer:
    • Walker
  • Suggested Purchase Quantity: 1
    • Most jobs typically require 1 of this item.
View all Details for Walker 21576

 [-] Hide  [+] Show   Additional GMC Fitment Information:
Vehicle Submodel Aspiration Fuel Type Cylinder Head Type Block Engine CID CC
2006 - GMC Sierra 3500 SL Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2006 - GMC Sierra 3500 SLE Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2006 - GMC Sierra 3500 SLT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2006 - GMC Sierra 3500 WT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
$104.53
List Price:
$134.84
IN STOCK
OUT OF STOCK
Auto Part # 21533 Walker
  • Exhaust Muffler Notes:
    1. Muffler; Quiet-Flow; CAB & CHASSIS; 133 Inch W.B.; If Welded Assembly, Replace All Required Parts; Small diameter Muffler w/2 1/2 Inch Inlet; Use Reducer Bushing 41974 to connect ot O.E. Converter Pipe

Additional Features

2007 GMC Sierra 2500 HD Exhaust Muffler 8 Cyl 8.1L Walker
- Additional Product Notes and Features:
  • Walker Quiet-Flow mufflers and muffler assemblies are constructed of stainless steel assuring a long life. They are designed using OE-style cross sections for a precision fit and OE-sound. Sophisticated internal routing provides superior flow and delivers the show room OE-sound you experienced when the vehicle was new.

  • Shipping Options:
    • Ships Ground, Two-Day, or Next-Day
    • This Product is eligible for International Shipping
  • Manufacturer:
    • Walker
  • Suggested Purchase Quantity: 1
    • Most jobs typically require 1 of this item.
View all Details for Walker 21533

 [-] Hide  [+] Show   Additional GMC Fitment Information:
Vehicle Submodel Aspiration Fuel Type Cylinder Head Type Block Engine CID CC
2007 - GMC Sierra 2500 HD Classic WT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2007 - GMC Sierra 2500 HD Classic SL Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2007 - GMC Sierra 2500 HD Classic SLE Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2007 - GMC Sierra 2500 HD Classic SLT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
$184.88
List Price:
$240.34
IN STOCK
OUT OF STOCK
Auto Part # 21576 Walker
  • Exhaust Muffler Notes:
    1. Muffler; Quiet-Flow; CAB & CHASSIS; SINGLE REAR WHEELS; 133 Inch W.B.; See Installation Note; If Welded Assembly, Replace All Required Parts; Small diameter Muffler w/3 Inch Inlet; Use Reducer Bushing 41974 to connect ot O.E. Converter Pipe

Additional Features

2007 GMC Sierra 2500 HD Exhaust Muffler 8 Cyl 8.1L Walker
- Additional Product Notes and Features:
  • Shipping Options:
    • Ships Ground, Two-Day, or Next-Day
    • This Product is eligible for International Shipping
  • Manufacturer:
    • Walker
  • Suggested Purchase Quantity: 1
    • Most jobs typically require 1 of this item.
View all Details for Walker 21576

 [-] Hide  [+] Show   Additional GMC Fitment Information:
Vehicle Submodel Aspiration Fuel Type Cylinder Head Type Block Engine CID CC
2007 - GMC Sierra 2500 HD Classic WT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2007 - GMC Sierra 2500 HD Classic SL Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2007 - GMC Sierra 2500 HD Classic SLE Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2007 - GMC Sierra 2500 HD Classic SLT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
$184.88
List Price:
$240.34
IN STOCK
OUT OF STOCK
Auto Part # 21576 Walker
  • Exhaust Muffler Notes:
    1. Muffler; Quiet-Flow; 133 Inch W.B.; EXC. LEV; Fed. Emiss.; See Installation Note; If Welded Assembly, Replace All Required Parts; O.E. Diameter Muffler w/3 inch Inlet and Outlet; Single Outlet Muffler replaces Dual Outlet Mufler

Additional Features

2002 - 2003 GMC Sierra 2500 HD Exhaust Muffler 8 Cyl 8.1L Walker
- Additional Product Notes and Features:
  • Shipping Options:
    • Ships Ground, Two-Day, or Next-Day
    • This Product is eligible for International Shipping
  • Manufacturer:
    • Walker
  • Suggested Purchase Quantity: 1
    • Most jobs typically require 1 of this item.
View all Details for Walker 21576

 [-] Hide  [+] Show   Additional GMC Fitment Information:
Vehicle Submodel Aspiration Fuel Type Cylinder Head Type Block Engine CID CC
2002 - GMC Sierra 2500 HD SLE Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2001 - GMC Sierra 2500 HD SL Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2006 - GMC Sierra 2500 HD SL Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2006 - GMC Sierra 2500 HD SLE Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2006 - GMC Sierra 2500 HD SLT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2006 - GMC Sierra 2500 HD WT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2005 - GMC Sierra 2500 HD SLT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2004 - GMC Sierra 2500 HD WT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2003 - GMC Sierra 2500 HD SLT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
$104.53
List Price:
$134.84
IN STOCK
OUT OF STOCK
Auto Part # 21533 Walker
  • Exhaust Muffler Notes:
    1. Muffler; Quiet-Flow; (EXC. LEV); 143.5 Inch, 153 Inch W.B.; Fed. Emiss.; Small Diameter w/2 1/2 Inch Inlet; If Welded Assembly, Replace All Required Parts; Used w/41974 to Connect O.E. Converter Pipe

Additional Features

2002 - 2003 GMC Sierra 2500 HD Exhaust Muffler 8 Cyl 8.1L Walker
- Additional Product Notes and Features:
  • Walker Quiet-Flow mufflers and muffler assemblies are constructed of stainless steel assuring a long life. They are designed using OE-style cross sections for a precision fit and OE-sound. Sophisticated internal routing provides superior flow and delivers the show room OE-sound you experienced when the vehicle was new.

  • Shipping Options:
    • Ships Ground, Two-Day, or Next-Day
    • This Product is eligible for International Shipping
  • Manufacturer:
    • Walker
  • Suggested Purchase Quantity: 1
    • Most jobs typically require 1 of this item.
View all Details for Walker 21533

 [-] Hide  [+] Show   Additional GMC Fitment Information:
Vehicle Submodel Aspiration Fuel Type Cylinder Head Type Block Engine CID CC
2002 - GMC Sierra 2500 HD SLE Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2001 - GMC Sierra 2500 HD SL Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2006 - GMC Sierra 2500 HD SL Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2006 - GMC Sierra 2500 HD SLE Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2006 - GMC Sierra 2500 HD SLT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2006 - GMC Sierra 2500 HD WT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2005 - GMC Sierra 2500 HD SLT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2004 - GMC Sierra 2500 HD WT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2003 - GMC Sierra 2500 HD SLT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
$104.53
List Price:
$134.84
IN STOCK
OUT OF STOCK
Auto Part # 21533 Walker
  • Exhaust Muffler Notes:
    1. Muffler; Quiet-Flow; CAB & CHASSIS; SINGLE REAR WHEELS; 133 Inch W.B.; Excludes H.D.; w/2 1/2 Inch Inlet; Small Diameter muffler; If Welded Assembly, Replace All Required Parts; Used w/41974 to connect with O.E. Converter Pipe

Additional Features

2007 GMC Sierra 3500 Exhaust Muffler 8 Cyl 8.1L Walker
- Additional Product Notes and Features:
  • Walker Quiet-Flow mufflers and muffler assemblies are constructed of stainless steel assuring a long life. They are designed using OE-style cross sections for a precision fit and OE-sound. Sophisticated internal routing provides superior flow and delivers the show room OE-sound you experienced when the vehicle was new.

  • Shipping Options:
    • Ships Ground, Two-Day, or Next-Day
    • This Product is eligible for International Shipping
  • Manufacturer:
    • Walker
  • Suggested Purchase Quantity: 1
    • Most jobs typically require 1 of this item.
View all Details for Walker 21533

 [-] Hide  [+] Show   Additional GMC Fitment Information:
Vehicle Submodel Aspiration Fuel Type Cylinder Head Type Block Engine CID CC
2007 - GMC Sierra 3500 Classic WT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2007 - GMC Sierra 3500 Classic SL Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2007 - GMC Sierra 3500 Classic SLE Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2007 - GMC Sierra 3500 Classic SLT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
$184.88
List Price:
$240.34
IN STOCK
OUT OF STOCK
Auto Part # 21576 Walker
  • Exhaust Muffler Notes:
    1. Muffler; Quiet-Flow; CAB & CHASSIS; SINGLE REAR WHEELS; 133 Inch W.B.; Excludes H.D.; w/3 inch Inlet and Outlet; O.E. Diameter Muffler; See Installation Note; If Welded Assembly, Replace All Required Parts; Single Outlet Muffler replaces Dual Outlet Muffler

Additional Features

2007 GMC Sierra 3500 Exhaust Muffler 8 Cyl 8.1L Walker
- Additional Product Notes and Features:
  • Shipping Options:
    • Ships Ground, Two-Day, or Next-Day
    • This Product is eligible for International Shipping
  • Manufacturer:
    • Walker
  • Suggested Purchase Quantity: 1
    • Most jobs typically require 1 of this item.
View all Details for Walker 21576

 [-] Hide  [+] Show   Additional GMC Fitment Information:
Vehicle Submodel Aspiration Fuel Type Cylinder Head Type Block Engine CID CC
2007 - GMC Sierra 3500 Classic WT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2007 - GMC Sierra 3500 Classic SL Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2007 - GMC Sierra 3500 Classic SLE Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2007 - GMC Sierra 3500 Classic SLT Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -