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  3. Exhaust
  4. Mufflers
  5. Exhaust Muffler
  6. Walker 21576

Walker 21576 Exhaust Muffler

Walker 21576 Exhaust Muffler
Walker 21576 Exhaust Muffler Image 1
Walker 21576 Exhaust Muffler

Walker
Brand:Walker
Part Number: 21576
UPC: 086387215763
Weight: 23 lbs
Condition:New



Availability:
0 in Stock
 OUT OF STOCK

Product Information

Description:

Get the Walker 21576 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:

AP Exhaust #:
2525
AP Exhaust #:
2556
Country of Origin:
US

Select a vehicle to narrow Walker 21576 Exhaust Muffler fitment info!

Last Updated: 06/23/2021

Years Vehicle Per Vehicle Fit NotesFitment Notes

2006

 

2005

 

2006

 

2005

 
Chevrolet Silverado 1500 HD

6.0L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
 

Chevrolet Silverado 1500 HD



6.0L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307

1 Per Vehicle

2003

 

2002

 

2003

 

2002

 
Chevrolet Silverado 1500 HD

6.0L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
 

Chevrolet Silverado 1500 HD



6.0L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307

1 Per Vehicle

2004

 

2004

 
Chevrolet Silverado 2500

6.0L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use Reducer Bushing 41974 to connect with OE Converter Pipe
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 153.0 In.
 

Chevrolet Silverado 2500



6.0L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use Reducer Bushing 41974 to connect with OE Converter Pipe
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 153.0 In.

1 Per Vehicle

2002

 

2002

 
Chevrolet Silverado 2500

6.0L V8 Bi-Fuel OHV,
6.0L V8 CNG OHV
1
 
Walker Quiet-Flow SS Muffler
1st Design
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 133.0 In.
 

Chevrolet Silverado 2500



6.0L V8 Bi-Fuel OHV,
6.0L V8 CNG OHV Walker Quiet-Flow SS Muffler
1st Design
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 133.0 In.

1 Per Vehicle

2002

 

2002

 
Chevrolet Silverado 2500

6.0L V8 Bi-Fuel OHV,
6.0L V8 CNG OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 157.5 In.
 

Chevrolet Silverado 2500



6.0L V8 Bi-Fuel OHV,
6.0L V8 CNG OHV Walker Quiet-Flow SS Muffler
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 157.5 In.

1 Per Vehicle

2002

 

2001

 

2002

 

2001

 
Chevrolet Silverado 2500

6.0L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
1st Design
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 133.0 In.
 

Chevrolet Silverado 2500



6.0L V8 Gas OHV Walker Quiet-Flow SS Muffler
1st Design
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 133.0 In.

1 Per Vehicle

2002

 

2001

 

2002

 

2001

 
Chevrolet Silverado 2500

6.0L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 157.5 In.
 

Chevrolet Silverado 2500



6.0L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 157.5 In.

1 Per Vehicle

2000

 

1999

 

2000

 

1999

 
Chevrolet Silverado 2500

6.0L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 143.5 In.
 

Chevrolet Silverado 2500



6.0L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 143.5 In.

1 Per Vehicle

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 
Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 133.0 In.
 

Chevrolet Silverado 2500 HD



6.0L V8 Gas OHV,
8.1L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 133.0 In.

1 Per Vehicle

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 
Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 143.5 In.
 

Chevrolet Silverado 2500 HD



6.0L V8 Gas OHV,
8.1L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 143.5 In.

1 Per Vehicle

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 
Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 153.0 In.
 

Chevrolet Silverado 2500 HD



6.0L V8 Gas OHV,
8.1L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 153.0 In.

1 Per Vehicle

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 
Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 157.5 In.
 

Chevrolet Silverado 2500 HD



6.0L V8 Gas OHV,
8.1L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 157.5 In.

1 Per Vehicle

2005

 

2004

 

2003

 

2002

 

2005

 

2004

 

2003

 

2002

 
Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 133.0 In.
 

Chevrolet Silverado 2500 HD



6.0L V8 CNG OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 133.0 In.

1 Per Vehicle

2005

 

2004

 

2003

 

2002

 

2005

 

2004

 

2003

 

2002

 
Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 143.5 In.
 

Chevrolet Silverado 2500 HD



6.0L V8 CNG OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 143.5 In.

1 Per Vehicle

2005

 

2004

 

2003

 

2002

 

2005

 

2004

 

2003

 

2002

 
Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 153.0 In.
 

Chevrolet Silverado 2500 HD



6.0L V8 CNG OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 153.0 In.

1 Per Vehicle

2005

 

2004

 

2003

 

2002

 

2005

 

2004

 

2003

 

2002

 
Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 157.5 In.
 

Chevrolet Silverado 2500 HD



6.0L V8 CNG OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 157.5 In.

1 Per Vehicle

2002

 

2002

 
Chevrolet Silverado 2500 HD

6.0L V8 Bi-Fuel OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 133.0 In.
 

Chevrolet Silverado 2500 HD



6.0L V8 Bi-Fuel OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 133.0 In.

1 Per Vehicle

2002

 

2002

 
Chevrolet Silverado 2500 HD

6.0L V8 Bi-Fuel OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 143.5 In.
 

Chevrolet Silverado 2500 HD



6.0L V8 Bi-Fuel OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 143.5 In.

1 Per Vehicle

2002

 

2002

 
Chevrolet Silverado 2500 HD

6.0L V8 Bi-Fuel OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 153.0 In.
 

Chevrolet Silverado 2500 HD



6.0L V8 Bi-Fuel OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 153.0 In.

1 Per Vehicle

2002

 

2002

 
Chevrolet Silverado 2500 HD

6.0L V8 Bi-Fuel OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 157.5 In.
 

Chevrolet Silverado 2500 HD



6.0L V8 Bi-Fuel OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 157.5 In.

1 Per Vehicle

2006

 

2006

 
Chevrolet Silverado 3500

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
Single Outlet Muffler Replaces Dual Outlet
with 3 (in) Diameter Outlet
with 3 (in) Inlet
with 9900 (lb) Gross Vehicle Weight (GVW)
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Crew Cab Pickup
Wheel Base 133.0 In.
 

Chevrolet Silverado 3500



6.0L V8 Gas OHV,
8.1L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
Single Outlet Muffler Replaces Dual Outlet
with 3 (in) Diameter Outlet
with 3 (in) Inlet
with 9900 (lb) Gross Vehicle Weight (GVW)
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Crew Cab Pickup
Wheel Base 133.0 In.

1 Per Vehicle

2006

 

2006

 
Chevrolet Silverado 3500

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
Single Outlet Muffler Replaces Dual Outlet
with 3 (in) Diameter Outlet
with 3 (in) Inlet
with 9900 (lb) Gross Vehicle Weight (GVW)
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Extended Cab Pickup
Wheel Base 133.0 In.
 

Chevrolet Silverado 3500



6.0L V8 Gas OHV,
8.1L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
Single Outlet Muffler Replaces Dual Outlet
with 3 (in) Diameter Outlet
with 3 (in) Inlet
with 9900 (lb) Gross Vehicle Weight (GVW)
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Extended Cab Pickup
Wheel Base 133.0 In.

1 Per Vehicle

2006

 

2006

 
Chevrolet Silverado 3500

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
Single Outlet Muffler Replaces Dual Outlet
with 3 (in) Diameter Outlet
with 3 (in) Inlet
with 9900 (lb) Gross Vehicle Weight (GVW)
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Standard Cab Pickup
Wheel Base 133.0 In.
 

Chevrolet Silverado 3500



6.0L V8 Gas OHV,
8.1L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
Single Outlet Muffler Replaces Dual Outlet
with 3 (in) Diameter Outlet
with 3 (in) Inlet
with 9900 (lb) Gross Vehicle Weight (GVW)
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Standard Cab Pickup
Wheel Base 133.0 In.

1 Per Vehicle

2006

 

2005

 

2004

 

2006

 

2005

 

2004

 
Chevrolet Silverado 3500

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with 3 (in) Muffler Inlet
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Crew Cab Pickup
Wheel Base 157.5 In.
 

Chevrolet Silverado 3500



6.0L V8 Gas OHV,
8.1L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
with 3 (in) Muffler Inlet
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Crew Cab Pickup
Wheel Base 157.5 In.

1 Per Vehicle

2006

 

2005

 

2004

 

2006

 

2005

 

2004

 
Chevrolet Silverado 3500

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with 3 (in) Muffler Inlet
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Extended Cab Pickup
Wheel Base 157.5 In.
 

Chevrolet Silverado 3500



6.0L V8 Gas OHV,
8.1L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
with 3 (in) Muffler Inlet
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Extended Cab Pickup
Wheel Base 157.5 In.

1 Per Vehicle

2006

 

2005

 

2004

 

2006

 

2005

 

2004

 
Chevrolet Silverado 3500

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with 3 (in) Muffler Inlet
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Standard Cab Pickup
Wheel Base 157.5 In.
 

Chevrolet Silverado 3500



6.0L V8 Gas OHV,
8.1L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
with 3 (in) Muffler Inlet
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Standard Cab Pickup
Wheel Base 157.5 In.

1 Per Vehicle

2005

 

2004

 

2005

 

2004

 
Chevrolet Silverado 3500

6.0L V8 CNG OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with 3 (in) Muffler Inlet
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Crew Cab Pickup
Wheel Base 157.5 In.
 

Chevrolet Silverado 3500



6.0L V8 CNG OHV Walker Quiet-Flow SS Muffler
Premium
with 3 (in) Muffler Inlet
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Crew Cab Pickup
Wheel Base 157.5 In.

1 Per Vehicle

2005

 

2004

 

2005

 

2004

 
Chevrolet Silverado 3500

6.0L V8 CNG OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with 3 (in) Muffler Inlet
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Extended Cab Pickup
Wheel Base 157.5 In.
 

Chevrolet Silverado 3500



6.0L V8 CNG OHV Walker Quiet-Flow SS Muffler
Premium
with 3 (in) Muffler Inlet
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Extended Cab Pickup
Wheel Base 157.5 In.

1 Per Vehicle

2005

 

2004

 

2005

 

2004

 
Chevrolet Silverado 3500

6.0L V8 CNG OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with 3 (in) Muffler Inlet
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Standard Cab Pickup
Wheel Base 157.5 In.
 

Chevrolet Silverado 3500



6.0L V8 CNG OHV Walker Quiet-Flow SS Muffler
Premium
with 3 (in) Muffler Inlet
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Standard Cab Pickup
Wheel Base 157.5 In.

1 Per Vehicle

2007

 

2007

 
Chevrolet Silverado 3500 Classic

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Except Heavy Duty
Premium
Limited Lifetime Warranty
with Single Rear Wheels (SRW)
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Cab & Chassis
Wheel Base 133.0 In.
 

Chevrolet Silverado 3500 Classic



6.0L V8 Gas OHV,
8.1L V8 Gas OHV Walker Quiet-Flow SS Muffler
Except Heavy Duty
Premium
Limited Lifetime Warranty
with Single Rear Wheels (SRW)
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Cab & Chassis
Wheel Base 133.0 In.

1 Per Vehicle

2007

 

2007

 
Chevrolet Silverado 3500 Classic

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Cab & Chassis
Wheel Base 157.5 In.
 

Chevrolet Silverado 3500 Classic



6.0L V8 Gas OHV,
8.1L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Cab & Chassis
Wheel Base 157.5 In.

1 Per Vehicle

2006

 

2005

 

2006

 

2005

 
GMC Sierra 1500 HD

6.0L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
 

GMC Sierra 1500 HD



6.0L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307

1 Per Vehicle

2003

 

2002

 

2003

 

2002

 
GMC Sierra 1500 HD

6.0L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
 

GMC Sierra 1500 HD



6.0L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307

1 Per Vehicle

2004

 

2004

 
GMC Sierra 2500

6.0L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use Reducer Bushing 41974 to connect with OE Converter Pipe
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 153.0 In.
 

GMC Sierra 2500



6.0L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use Reducer Bushing 41974 to connect with OE Converter Pipe
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 153.0 In.

1 Per Vehicle

2002

 

2002

 
GMC Sierra 2500

6.0L V8 Bi-Fuel OHV,
6.0L V8 CNG OHV
1
 
Walker Quiet-Flow SS Muffler
1st Design
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 133.0 In.
 

GMC Sierra 2500



6.0L V8 Bi-Fuel OHV,
6.0L V8 CNG OHV Walker Quiet-Flow SS Muffler
1st Design
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 133.0 In.

1 Per Vehicle

2002

 

2002

 
GMC Sierra 2500

6.0L V8 Bi-Fuel OHV,
6.0L V8 CNG OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 157.5 In.
 

GMC Sierra 2500



6.0L V8 Bi-Fuel OHV,
6.0L V8 CNG OHV Walker Quiet-Flow SS Muffler
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 157.5 In.

1 Per Vehicle

2002

 

2001

 

2002

 

2001

 
GMC Sierra 2500

6.0L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
1st Design
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 133.0 In.
 

GMC Sierra 2500



6.0L V8 Gas OHV Walker Quiet-Flow SS Muffler
1st Design
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 133.0 In.

1 Per Vehicle

2002

 

2001

 

2002

 

2001

 
GMC Sierra 2500

6.0L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 157.5 In.
 

GMC Sierra 2500



6.0L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 157.5 In.

1 Per Vehicle

2000

 

1999

 

2000

 

1999

 
GMC Sierra 2500

6.0L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 143.5 In.
 

GMC Sierra 2500



6.0L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
Limited Lifetime Warranty
If welded assembly, modifications and/or additional parts may be required.
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 143.5 In.

1 Per Vehicle

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 
GMC Sierra 2500 HD

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 133.0 In.
 

GMC Sierra 2500 HD



6.0L V8 Gas OHV,
8.1L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 133.0 In.

1 Per Vehicle

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 
GMC Sierra 2500 HD

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 143.5 In.
 

GMC Sierra 2500 HD



6.0L V8 Gas OHV,
8.1L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 143.5 In.

1 Per Vehicle

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 
GMC Sierra 2500 HD

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 153.0 In.
 

GMC Sierra 2500 HD



6.0L V8 Gas OHV,
8.1L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 153.0 In.

1 Per Vehicle

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 
GMC Sierra 2500 HD

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 157.5 In.
 

GMC Sierra 2500 HD



6.0L V8 Gas OHV,
8.1L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 157.5 In.

1 Per Vehicle

2005

 

2004

 

2003

 

2002

 

2005

 

2004

 

2003

 

2002

 
GMC Sierra 2500 HD

6.0L V8 CNG OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 133.0 In.
 

GMC Sierra 2500 HD



6.0L V8 CNG OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 133.0 In.

1 Per Vehicle

2005

 

2004

 

2003

 

2002

 

2005

 

2004

 

2003

 

2002

 
GMC Sierra 2500 HD

6.0L V8 CNG OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 143.5 In.
 

GMC Sierra 2500 HD



6.0L V8 CNG OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 143.5 In.

1 Per Vehicle

2005

 

2004

 

2003

 

2002

 

2005

 

2004

 

2003

 

2002

 
GMC Sierra 2500 HD

6.0L V8 CNG OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 153.0 In.
 

GMC Sierra 2500 HD



6.0L V8 CNG OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 153.0 In.

1 Per Vehicle

2005

 

2004

 

2003

 

2002

 

2005

 

2004

 

2003

 

2002

 
GMC Sierra 2500 HD

6.0L V8 CNG OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 157.5 In.
 

GMC Sierra 2500 HD



6.0L V8 CNG OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 157.5 In.

1 Per Vehicle

2002

 

2002

 
GMC Sierra 2500 HD

6.0L V8 Bi-Fuel OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 133.0 In.
 

GMC Sierra 2500 HD



6.0L V8 Bi-Fuel OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 133.0 In.

1 Per Vehicle

2002

 

2002

 
GMC Sierra 2500 HD

6.0L V8 Bi-Fuel OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 143.5 In.
 

GMC Sierra 2500 HD



6.0L V8 Bi-Fuel OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 143.5 In.

1 Per Vehicle

2002

 

2002

 
GMC Sierra 2500 HD

6.0L V8 Bi-Fuel OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 153.0 In.
 

GMC Sierra 2500 HD



6.0L V8 Bi-Fuel OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 153.0 In.

1 Per Vehicle

2002

 

2002

 
GMC Sierra 2500 HD

6.0L V8 Bi-Fuel OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 157.5 In.
 

GMC Sierra 2500 HD



6.0L V8 Bi-Fuel OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Wheel Base 157.5 In.

1 Per Vehicle

2006

 

2006

 
GMC Sierra 3500

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
Single Outlet Muffler Replaces Dual Outlet
with 3 (in) Diameter Outlet
with 3 (in) Inlet
with 9900 (lb) Gross Vehicle Weight (GVW)
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Crew Cab Pickup
Wheel Base 133.0 In.
 

GMC Sierra 3500



6.0L V8 Gas OHV,
8.1L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
Single Outlet Muffler Replaces Dual Outlet
with 3 (in) Diameter Outlet
with 3 (in) Inlet
with 9900 (lb) Gross Vehicle Weight (GVW)
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Crew Cab Pickup
Wheel Base 133.0 In.

1 Per Vehicle

2006

 

2006

 
GMC Sierra 3500

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
Single Outlet Muffler Replaces Dual Outlet
with 3 (in) Diameter Outlet
with 3 (in) Inlet
with 9900 (lb) Gross Vehicle Weight (GVW)
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Extended Cab Pickup
Wheel Base 133.0 In.
 

GMC Sierra 3500



6.0L V8 Gas OHV,
8.1L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
Single Outlet Muffler Replaces Dual Outlet
with 3 (in) Diameter Outlet
with 3 (in) Inlet
with 9900 (lb) Gross Vehicle Weight (GVW)
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Extended Cab Pickup
Wheel Base 133.0 In.

1 Per Vehicle

2006

 

2006

 
GMC Sierra 3500

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
Single Outlet Muffler Replaces Dual Outlet
with 3 (in) Diameter Outlet
with 3 (in) Inlet
with 9900 (lb) Gross Vehicle Weight (GVW)
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Standard Cab Pickup
Wheel Base 133.0 In.
 

GMC Sierra 3500



6.0L V8 Gas OHV,
8.1L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
Single Outlet Muffler Replaces Dual Outlet
with 3 (in) Diameter Outlet
with 3 (in) Inlet
with 9900 (lb) Gross Vehicle Weight (GVW)
with Federal Emission System
except Low Emission Vehicle (LEV)
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Standard Cab Pickup
Wheel Base 133.0 In.

1 Per Vehicle

2006

 

2005

 

2004

 

2006

 

2005

 

2004

 
GMC Sierra 3500

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with 3 (in) Muffler Inlet
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Crew Cab Pickup
Wheel Base 157.5 In.
 

GMC Sierra 3500



6.0L V8 Gas OHV,
8.1L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
with 3 (in) Muffler Inlet
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Crew Cab Pickup
Wheel Base 157.5 In.

1 Per Vehicle

2006

 

2005

 

2004

 

2006

 

2005

 

2004

 
GMC Sierra 3500

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with 3 (in) Muffler Inlet
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Extended Cab Pickup
Wheel Base 157.5 In.
 

GMC Sierra 3500



6.0L V8 Gas OHV,
8.1L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
with 3 (in) Muffler Inlet
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Extended Cab Pickup
Wheel Base 157.5 In.

1 Per Vehicle

2006

 

2005

 

2004

 

2006

 

2005

 

2004

 
GMC Sierra 3500

8.1L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with 3 (in) Muffler Inlet
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Standard Cab Pickup
Wheel Base 157.5 In.
 

GMC Sierra 3500



8.1L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
with 3 (in) Muffler Inlet
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Standard Cab Pickup
Wheel Base 157.5 In.

1 Per Vehicle

2005

 

2004

 

2005

 

2004

 
GMC Sierra 3500

6.0L V8 CNG OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with 3 (in) Muffler Inlet
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Crew Cab Pickup
Wheel Base 157.5 In.
 

GMC Sierra 3500



6.0L V8 CNG OHV Walker Quiet-Flow SS Muffler
Premium
with 3 (in) Muffler Inlet
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Crew Cab Pickup
Wheel Base 157.5 In.

1 Per Vehicle

2005

 

2004

 

2005

 

2004

 
GMC Sierra 3500

6.0L V8 CNG OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with 3 (in) Muffler Inlet
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Extended Cab Pickup
Wheel Base 157.5 In.
 

GMC Sierra 3500



6.0L V8 CNG OHV Walker Quiet-Flow SS Muffler
Premium
with 3 (in) Muffler Inlet
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Extended Cab Pickup
Wheel Base 157.5 In.

1 Per Vehicle

2005

 

2004

 

2005

 

2004

 
GMC Sierra 3500

6.0L V8 CNG OHV,
6.0L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with 3 (in) Muffler Inlet
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Standard Cab Pickup
Wheel Base 157.5 In.
 

GMC Sierra 3500



6.0L V8 CNG OHV,
6.0L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
with 3 (in) Muffler Inlet
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
Use to depletion, then use 22307
Standard Cab Pickup
Wheel Base 157.5 In.

1 Per Vehicle

2007

 

2007

 
GMC Sierra 3500 Classic

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Except Heavy Duty
Premium
Limited Lifetime Warranty
with Single Rear Wheels (SRW)
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Cab & Chassis
Wheel Base 133.0 In.
 

GMC Sierra 3500 Classic



6.0L V8 Gas OHV,
8.1L V8 Gas OHV Walker Quiet-Flow SS Muffler
Except Heavy Duty
Premium
Limited Lifetime Warranty
with Single Rear Wheels (SRW)
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Cab & Chassis
Wheel Base 133.0 In.

1 Per Vehicle

2007

 

2007

 
GMC Sierra 3500 Classic

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Cab & Chassis
Wheel Base 157.5 In.
 

GMC Sierra 3500 Classic



6.0L V8 Gas OHV,
8.1L V8 Gas OHV Walker Quiet-Flow SS Muffler
Premium
with Federal Emission System
Limited Lifetime Warranty
If welded assembly, replace all required parts
3 (in) Inlet and Outlet
Use to depletion, then use 22307
Cab & Chassis
Wheel Base 157.5 In.

1 Per Vehicle


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