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The products below fit your GMC SL

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GMC SL 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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$50.99
List Price:
$63.74
IN STOCK
OUT OF STOCK
Auto Part # 18823 Walker
  • Exhaust Muffler Notes:
    1. Muffler; SoundFX; Optional; SoundFX for 21356; 119 Inch W.B.

Additional Features

2000 - 2006 GMC Sierra 1500 SL Exhaust Muffler Walker
- Additional Product Notes and Features:
  • Walker SoundFX mufflers and muffler assemblies are engineered to give you a high quality performance sound experience. Constructed of quality materials both the standard and universal fit are 100% aluminized material. Reinforced bracket heads, mechanical interior joints and spun-locked heads assure a quality product that delivers superior fit and long life with a performance sound.

  • 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 18823

 [-] Hide  [+] Show   Additional GMC Fitment Information:
Vehicle Submodel Aspiration Fuel Type Cylinder Head Type Block Engine CID CC
2000 - GMC Sierra 1500 SL Naturally Aspirated GAS OHV V 6 Cyl 4.3L 262 -
2006 - GMC Sierra 1500 SL Naturally Aspirated GAS OHV V 6 Cyl 4.3L 262 -
2000 - GMC Sierra 1500 SL Naturally Aspirated GAS OHV V 8 Cyl 4.8L 294 -
2006 - GMC Sierra 1500 SL Naturally Aspirated GAS OHV V 8 Cyl 4.8L 294 -
2000 - GMC Sierra 1500 SL Naturally Aspirated GAS OHV V 8 Cyl 5.3L 323 -
2006 - GMC Sierra 1500 SL Naturally Aspirated FLEX OHV V 8 Cyl 5.3L 325 5328
2006 - GMC Sierra 1500 SL Naturally Aspirated GAS OHV V 8 Cyl 5.3L 325 -
$77.11
List Price:
$92.53
IN STOCK
OUT OF STOCK
Auto Part # 21391 Walker
  • Exhaust Muffler Notes:
    1. Muffler; Quiet-Flow; If Welded Assembly, Replace All Required Parts

Additional Features

2001 GMC Safari SL Exhaust Muffler 6 Cyl 4.3L 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 21391

 [-] Hide  [+] Show   Additional GMC Fitment Information:
Vehicle Submodel Aspiration Fuel Type Cylinder Head Type Block Engine CID CC
2001 - GMC Safari SL Naturally Aspirated GAS OHV V 6 Cyl 4.3L 262 -
$60.45
List Price:
$76.77
IN STOCK
OUT OF STOCK
Auto Part # 18913 Walker
  • Exhaust Muffler Notes:
    1. Muffler; SoundFX; Optional; SoundFX for 21302; 2 WHEEL DRIVE

Additional Features

2001 - 2003 GMC Sonoma SL Exhaust Muffler 6 Cyl 4.3L 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 18913

 [-] Hide  [+] Show   Additional GMC Fitment Information:
Vehicle Submodel Aspiration Fuel Type Cylinder Head Type Block Engine CID CC
2001 - GMC Sonoma SL Naturally Aspirated GAS OHV V 6 Cyl 4.3L 262 -
2002 - GMC Sonoma SL Naturally Aspirated GAS OHV V 6 Cyl 4.3L 262 -
2003 - GMC Sonoma SL Naturally Aspirated GAS OHV V 6 Cyl 4.3L 262 -
$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

2001 - 2006 GMC Sierra 2500 HD SL Exhaust Muffler 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
2001 - GMC Sierra 2500 HD SL Naturally Aspirated GAS OHV V 8 Cyl 6.0L 364 5967
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 -
$98.07
List Price:
$120.63
IN STOCK
OUT OF STOCK
Auto Part # 21356 Walker
  • Exhaust Muffler Notes:
    1. Muffler; Quiet-Flow; 119 Inch W.B.; If Welded Assembly, Replace All Required Parts

Additional Features

2000 - 2006 GMC Sierra 1500 SL Exhaust Muffler 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 21356

 [-] Hide  [+] Show   Additional GMC Fitment Information:
Vehicle Submodel Aspiration Fuel Type Cylinder Head Type Block Engine CID CC
2000 - GMC Sierra 1500 SL Naturally Aspirated GAS OHV V 6 Cyl 4.3L 262 -
2006 - GMC Sierra 1500 SL Naturally Aspirated GAS OHV V 6 Cyl 4.3L 262 -
2000 - GMC Sierra 1500 SL Naturally Aspirated GAS OHV V 8 Cyl 4.8L 294 -
2006 - GMC Sierra 1500 SL Naturally Aspirated GAS OHV V 8 Cyl 4.8L 294 -
2000 - GMC Sierra 1500 SL Naturally Aspirated GAS OHV V 8 Cyl 5.3L 323 -
2006 - GMC Sierra 1500 SL Naturally Aspirated FLEX OHV V 8 Cyl 5.3L 325 5328
2006 - GMC Sierra 1500 SL Naturally Aspirated GAS OHV V 8 Cyl 5.3L 325 -
$87.56
List Price:
$107.70
IN STOCK
OUT OF STOCK
Auto Part # 21481 Walker
  • Exhaust Muffler Notes:
    1. Muffler; Quiet-Flow; If Welded Assembly, Replace All Required Parts

Additional Features

2007 - 2004 GMC Canyon SL Exhaust Muffler 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 21481

 [-] Hide  [+] Show   Additional GMC Fitment Information:
Vehicle Submodel Aspiration Fuel Type Cylinder Head Type Block Engine CID CC
2007 - GMC Canyon SL Naturally Aspirated GAS DOHC L 4 Cyl 2.9L 178 2921
2006 - GMC Canyon SL Naturally Aspirated GAS DOHC L 4 Cyl 2.8L 169 2770
2004 - GMC Canyon SL Naturally Aspirated GAS DOHC L 4 Cyl 2.8L 169 2770
2004 - GMC Canyon SL Naturally Aspirated GAS DOHC L 5 Cyl 3.5L 211 3460
$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

2001 - 2006 GMC Sierra 2500 HD SL Exhaust Muffler 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
2001 - GMC Sierra 2500 HD SL Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
2001 - GMC Sierra 2500 HD SL Naturally Aspirated GAS OHV V 8 Cyl 6.0L 364 5967
2006 - GMC Sierra 2500 HD SL Naturally Aspirated GAS OHV V 8 Cyl 8.1L 496 -
$121.65
List Price:
$156.93
IN STOCK
OUT OF STOCK
Auto Part # 21437 Walker
  • Exhaust Muffler Notes:
    1. Muffler; Quiet-Flow; 133 Inch W.B.; 1st Design; Excludes H.D.; w/2 1/2 Inch Inlet; If Welded Assembly, Replace All Required Parts; Small Diameter Muffler w/2 1/2 Inch Inlet; Used w/41965 to Connect O.E. Converter Pipe

Additional Features

2002 GMC Sierra 2500 SL Exhaust Muffler 8 Cyl 6.0L 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 21437

 [-] Hide  [+] Show   Additional GMC Fitment Information:
Vehicle Submodel Aspiration Fuel Type Cylinder Head Type Block Engine CID CC
2002 - GMC Sierra 2500 SL Naturally Aspirated GAS OHV V 8 Cyl 6.0L 364 5967
2002 - GMC Sierra 2500 SL Naturally Aspirated CNG OHV V 8 Cyl 6.0L 364 5967
2002 - GMC Sierra 2500 SL Naturally Aspirated BI-FUEL OHV V 8 Cyl 6.0L 364 5967
$358.27
List Price:
$440.67
IN STOCK
OUT OF STOCK
Auto Part # 8004000 Corsa
  • Exhaust Muffler Notes:

Additional Features

2001 - 2006 GMC Sierra 2500 HD SL Exhaust Muffler 8 Cyl 6.6L Corsa
- Additional Product Notes and Features:
  • Exhaust Muffler Features:
    • dB Series Diesel Muffler
    • 9.62 in. Round
    • 4.02 in. Center Inlet/4 in. Center Outlet
    • 23.25 in. Length
    • 27.5 in. Overall Length
    • Satin Finish
  • Shipping Options:
    • Ships Ground, Two-Day, or Next-Day
    • This Product is eligible for International Shipping
  • Manufacturer:
    • Corsa
View all Details for Corsa 8004000

 [-] Hide  [+] Show   Additional GMC Fitment Information:
Vehicle Submodel Aspiration Fuel Type Cylinder Head Type Block Engine CID CC
2001 - GMC Sierra 2500 HD SL Turbocharged DIESEL OHV V 8 Cyl 6.6L 400 -
2001 - GMC Sierra 3500 SL Turbocharged DIESEL OHV V 8 Cyl 6.6L 400 -
2006 - GMC Sierra 3500 SL Turbocharged DIESEL OHV V 8 Cyl 6.6L 400 -
2006 - GMC Sierra 2500 HD SL Turbocharged DIESEL OHV V 8 Cyl 6.6L 400 -
$52.41
List Price:
$63.42
IN STOCK
OUT OF STOCK
Auto Part # 18941 Walker
  • Exhaust Muffler Notes:
    1. Muffler; SoundFX; Optional; SoundFX for 21391

Additional Features

2001 GMC Safari SL Exhaust Muffler 6 Cyl 4.3L 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 18941

 [-] Hide  [+] Show   Additional GMC Fitment Information:
Vehicle Submodel Aspiration Fuel Type Cylinder Head Type Block Engine CID CC
2001 - GMC Safari SL Naturally Aspirated GAS OHV V 6 Cyl 4.3L 262 -