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Replacement and OEM Parts for 2011 Chevrolet Impala Muffler

2011 Chevrolet Impala Muffler

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2011 Chevrolet Impala
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Exhaust Manifolds, Pipes & Mufflers
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  • Walker Quiet Flow Passenger Side Stainless Steel Oval Aluminized Exhaust Muffler for 2011 Chevrolet Impala - 21570

    Walker® Quiet Flow Passenger Side Stainless Steel Oval Aluminized Exhaust Muffler for 2011 Chevrolet Impala

    PartNumber: 21570
    Product Specifications
    • Notes: Premium - Limited Lifetime Warranty; If Welded Assy, Replace All Reqd Parts
    • Body Height: 7.000
    • Body Length: 14.000
    • Body Material: Stainless Steel
    • Body Width: 9.000
    • Exhaust Component Mount Type: Uses Factory Hangers
    • Finish: Aluminized
    • Grade Type: Regular
    • Inlet 1 Inside Diameter: 1.875
    • Inlet 1 Type: Pipe Connection
    • Inlet Configuration: Offset
    • Inlet Offset: 1.625
    • Internet Product Code (IPC): A9D0B338643
    • Item has MSDS (SDS): N
    • Max Year Covered: 2011
    • MFG Brand Name: Walker Exhaust
    • MFG Model # (Series): 21570
    • MFG Name: Tenneco, Inc
    • Min Year Covered: 2006
    • Most Popular Make / Model: Chevrolet Impala
    • Most Popular Year: 2008
    • Muffler Body Height: 7.0
    • Muffler Body Length: 14.0
    • Muffler Body Material: Stainless Steel
    • Muffler Body Width: 9.0
    • Muffler Color / Finish: Bare
    • Muffler Inlet: Offset
    • Muffler Inlet Connection Type: Pipe Connection
    • Muffler Inlet Count: 1
    • Muffler Inlet Diameter (in): 1.875
    • Muffler Inlet Diameter 2 (in): 0.0
    • Muffler Inlet Diameter Designation: Inside Diameter
    • Muffler Outlet: Offset
    • Muffler Outlet Connection Type: Tip - Welded Spout
    • Muffler Outlet Count: 1
    • Muffler Outlet Diameter (in): 2.25
    • Muffler Outlet Diameter Designation: Outside Diameter
    • Muffler Overall Length: 32.4
    • Muffler Reversible: No
    • Muffler Shape: Oval
    • Outlet 1 Outside Diameter: 2.250
    • Outlet Configuration: Offset
    • Overall Length: 32.500
    • Product Grade: Economy
    • Reversible: No
    • Shape: Oval
    • Supplier Company Name: Tenneco, Inc
    • Total Part VIO: 239761
    • Universal Or Specific Fit: Specific
    • UPC: 086387215701
    • Part Description: 2011 Chevrolet Impala Quiet Flow Passenger Side Stainless Steel Oval Aluminized Exhaust Muffler
    More Info
    Vehicle Fitment
    • 2011 Chevrolet Impala | All Trims | 6 Cyl 3.9L
    $87.91
  • Walker Quiet Flow Driver Side Stainless Steel Oval Aluminized Exhaust Muffler for 2011 Chevrolet Impala - 21571

    Walker® Quiet Flow Driver Side Stainless Steel Oval Aluminized Exhaust Muffler for 2011 Chevrolet Impala

    PartNumber: 21571
    Product Specifications
    • Notes: Premium - Limited Lifetime Warranty; If Welded Assy, Replace All Reqd Parts
    • Body Height: 7.000
    • Body Length: 14.000
    • Body Material: Stainless Steel
    • Body Width: 9.000
    • Exhaust Component Mount Type: Uses Factory Hangers
    • Finish: Aluminized
    • Grade Type: Regular
    • Inlet 1 Inside Diameter: 1.875
    • Inlet 1 Type: Pipe Connection
    • Inlet Configuration: Offset
    • Inlet Offset: 1.625
    • Internet Product Code (IPC): 125BF90091E
    • Item has MSDS (SDS): N
    • Max Year Covered: 2011
    • MFG Brand Name: Walker Exhaust
    • MFG Model # (Series): 21571
    • MFG Name: Tenneco, Inc
    • Min Year Covered: 2006
    • Most Popular Make / Model: Chevrolet Impala
    • Most Popular Year: 2008
    • Muffler Body Height: 7.0
    • Muffler Body Length: 14.0
    • Muffler Body Material: Stainless Steel
    • Muffler Body Width: 9.0
    • Muffler Color / Finish: Bare
    • Muffler Inlet: Offset
    • Muffler Inlet Connection Type: Pipe Connection
    • Muffler Inlet Count: 1
    • Muffler Inlet Diameter (in): 1.875
    • Muffler Inlet Diameter 2 (in): 0.0
    • Muffler Inlet Diameter Designation: Inside Diameter
    • Muffler Outlet: Offset
    • Muffler Outlet Connection Type: Tip - Welded Spout
    • Muffler Outlet Count: 1
    • Muffler Outlet Diameter (in): 2.25
    • Muffler Outlet Diameter Designation: Outside Diameter
    • Muffler Overall Length: 32.4099
    • Muffler Reversible: No
    • Muffler Shape: Oval
    • Outlet 1 Outside Diameter: 2.250
    • Outlet Configuration: Offset
    • Overall Length: 32.500
    • Product Grade: Economy
    • Reversible: No
    • Shape: Oval
    • Supplier Company Name: Tenneco, Inc
    • Total Part VIO: 239761
    • Universal Or Specific Fit: Specific
    • UPC: 086387215718
    • Part Description: 2011 Chevrolet Impala Quiet Flow Driver Side Stainless Steel Oval Aluminized Exhaust Muffler
    More Info
    Vehicle Fitment
    • 2011 Chevrolet Impala | All Trims | 6 Cyl 3.9L
    $87.91
  • Walker Quiet Flow Stainless Steel Oval Aluminized Exhaust Muffler for 2011 Chevrolet Impala - 21558

    Walker® Quiet Flow Stainless Steel Oval Aluminized Exhaust Muffler for 2011 Chevrolet Impala

    PartNumber: 21558
    Product Specifications
    • Notes: Premium - Limited Lifetime Warranty; w/One Converter; If welded Assy, replace all Reqd parts.
    • Inlet Connection Type: Pipe Connection
    • Inlet Diameter Designation: Outside Diameter
    • Inlet Quantity: 1
    • Item Grade: OEM Standard Part
    • Muffler Body Finish: Aluminized
    • Muffler Body Height: 5.5"
    • Muffler Body Length: 15"
    • Muffler Body Material: Stainless Steel
    • Muffler Body Shape: Oval
    • Muffler Body Width: 11"
    • Muffler Inlet Diameter: 2.25"
    • Muffler Inlet-Outlet Configuration: Offset - Center
    • Muffler Outlet Diameter: 2.25"
    • Muffler Overall Length: 27.1875"
    • Muffler Reversibility: No
    • Muffler Series: Quiet-Flow™
    • Muffler Type: Combination
    • Outlet Connection Type: Tip - Welded Spout
    • Outlet Diameter Designation: Outside Diameter
    • Outlet Quantity: 1
    • Part Description: 2011 Chevrolet Impala Quiet Flow Stainless Steel Oval Aluminized Exhaust Muffler
    More Info
    Vehicle Fitment
    • 2011 Chevrolet Impala | All Trims | 6 Cyl 3.5L
    $75.76
  • Walker Soundfx Passenger Side Aluminized Steel Oval Direct Fit Exhaust Muffler for 2011 Chevrolet Impala - 18949

    Walker® Soundfx Passenger Side Aluminized Steel Oval Direct Fit Exhaust Muffler for 2011 Chevrolet Impala

    PartNumber: 18949
    Product Specifications
    • Notes: If Welded Assy, Replace All Reqd Parts; Optional; SoundFX for 21570
    • Body Height: 7.000
    • Body Length: 14.000
    • Body Material: Steel
    • Body Width: 9.000
    • Finish: Aluminized
    • Grade Type: Regular
    • Inlet 1 Inside Diameter: 1.875
    • Inlet 1 Type: Pipe Connection
    • Inlet Configuration: Offset
    • Inlet Offset: 1.625
    • Internet Product Code (IPC): 9E0A5AA4DD5
    • Item has MSDS (SDS): N
    • Max Year Covered: 2011
    • MFG Brand Name: Walker Exhaust
    • MFG Model # (Series): 18949
    • MFG Name: Tenneco, Inc
    • Min Year Covered: 2006
    • Most Popular Make / Model: Chevrolet Impala
    • Most Popular Year: 2008
    • Muffler Body Height: 7
    • Muffler Body Length: 14
    • Muffler Body Material: Steel
    • Muffler Body Width: 9
    • Muffler Color / Finish: Aluminized
    • Muffler Inlet: Offset
    • Muffler Inlet Connection Type: Pipe Connection
    • Muffler Inlet Count: 1
    • Muffler Inlet Diameter (in): 1.875
    • Muffler Inlet Diameter Designation: Inside Diameter
    • Muffler Outlet: Offset
    • Muffler Outlet Connection Type: Tip - Welded Spout
    • Muffler Outlet Count: 1
    • Muffler Outlet Diameter (in): 2.25
    • Muffler Outlet Diameter Designation: Outside Diameter
    • Muffler Overall Length: 32.5
    • Muffler Reversible: No
    • Muffler Shape: Oval
    • Outlet 1 Outside Diameter: 2.250
    • Outlet Configuration: Offset
    • Overall Length: 32.500
    • Product Grade: Economy
    • Reversible: No
    • Shape: Oval
    • Supplier Company Name: Tenneco, Inc
    • Total Part VIO: 239761
    • Universal Or Specific Fit: Specific
    • UPC: 086387189491
    • Part Description: 2011 Chevrolet Impala Soundfx Passenger Side Aluminized Steel Oval Direct Fit Exhaust Muffler
    More Info
    Vehicle Fitment
    • 2011 Chevrolet Impala | All Trims | 6 Cyl 3.9L
    $52.20
  • Walker Soundfx Aluminized Steel Oval Direct Fit Exhaust Muffler for 2011 Chevrolet Impala - 18948

    Walker® Soundfx Aluminized Steel Oval Direct Fit Exhaust Muffler for 2011 Chevrolet Impala

    PartNumber: 18948
    Product Specifications
    • Notes: w/One Converter; If welded Assy, replace all Reqd parts; Optional; SoundFX for 21558
    • Body Height: 5.500
    • Body Length: 15.000
    • Body Material: Steel
    • Body Width: 11.000
    • Finish: Aluminized
    • Grade Type: Regular
    • Inlet 1 Inside Diameter: 2.250
    • Inlet 1 Type: Pipe Connection
    • Inlet Configuration: Offset
    • Inlet Offset: 3.75
    • Internet Product Code (IPC): 154BA7299CD
    • Item has MSDS (SDS): N
    • Max Year Covered: 2011
    • MFG Brand Name: Walker Exhaust
    • MFG Model # (Series): 18948
    • MFG Name: Tenneco, Inc
    • Min Year Covered: 2006
    • Most Popular Make / Model: Chevrolet Impala
    • Most Popular Year: 2008
    • Muffler Body Height: 5.5
    • Muffler Body Length: 15
    • Muffler Body Material: Steel
    • Muffler Body Width: 11
    • Muffler Color / Finish: Aluminized
    • Muffler Inlet: Offset
    • Muffler Inlet Connection Type: Pipe Connection
    • Muffler Inlet Count: 1
    • Muffler Inlet Diameter (in): 2.25
    • Muffler Inlet Diameter Designation: Outside Diameter
    • Muffler Outlet: Offset
    • Muffler Outlet Connection Type: Tip - Welded Spout
    • Muffler Outlet Count: 1
    • Muffler Outlet Diameter (in): 2.25
    • Muffler Outlet Diameter Designation: Outside Diameter
    • Muffler Overall Length: 27.25
    • Muffler Reversible: No
    • Muffler Shape: Oval
    • Outlet 1 Outside Diameter: 2.250
    • Outlet Configuration: Center
    • Overall Length: 27.250
    • Product Grade: Economy
    • Reversible: No
    • Shape: Oval
    • Supplier Company Name: Tenneco, Inc
    • Total Part VIO: 984077
    • Universal Or Specific Fit: Specific
    • UPC: 086387189484
    • Part Description: 2011 Chevrolet Impala Soundfx Aluminized Steel Oval Direct Fit Exhaust Muffler
    More Info
    Vehicle Fitment
    • 2011 Chevrolet Impala | All Trims | 6 Cyl 3.5L
    $45.33
  • Walker Soundfx Driver Side Aluminized Steel Oval Direct Fit Exhaust Muffler for 2011 Chevrolet Impala - 18950

    Walker® Soundfx Driver Side Aluminized Steel Oval Direct Fit Exhaust Muffler for 2011 Chevrolet Impala

    PartNumber: 18950
    Product Specifications
    • Notes: If Welded Assy, Replace All Reqd Parts; Optional; SoundFX for 21571
    • Body Height: 7.000
    • Body Length: 14.000
    • Body Material: Steel
    • Body Width: 9.000
    • Finish: Aluminized
    • Grade Type: Regular
    • Inlet 1 Inside Diameter: 1.875
    • Inlet 1 Type: Pipe Connection
    • Inlet Configuration: Offset
    • Inlet Offset: 1.625
    • Internet Product Code (IPC): 370E0A2F474
    • Item has MSDS (SDS): N
    • Max Year Covered: 2011
    • MFG Brand Name: Walker Exhaust
    • MFG Model # (Series): 18950
    • MFG Name: Tenneco, Inc
    • Min Year Covered: 2006
    • Most Popular Make / Model: Chevrolet Impala
    • Most Popular Year: 2008
    • Muffler Body Height: 7
    • Muffler Body Length: 14
    • Muffler Body Material: Steel
    • Muffler Body Width: 9
    • Muffler Color / Finish: Aluminized
    • Muffler Inlet: Offset
    • Muffler Inlet Connection Type: Pipe Connection
    • Muffler Inlet Count: 1
    • Muffler Inlet Diameter (in): 1.875
    • Muffler Inlet Diameter Designation: Inside Diameter
    • Muffler Outlet: Offset
    • Muffler Outlet Connection Type: Tip - Welded Spout
    • Muffler Outlet Count: 1
    • Muffler Outlet Diameter (in): 2.25
    • Muffler Outlet Diameter Designation: Outside Diameter
    • Muffler Overall Length: 32.5
    • Muffler Reversible: No
    • Muffler Shape: Oval
    • Outlet 1 Outside Diameter: 2.250
    • Outlet Configuration: Offset
    • Overall Length: 32.500
    • Product Grade: Economy
    • Reversible: No
    • Shape: Oval
    • Supplier Company Name: Tenneco, Inc
    • Total Part VIO: 239761
    • Universal Or Specific Fit: Specific
    • UPC: 086387189507
    • Part Description: 2011 Chevrolet Impala Soundfx Driver Side Aluminized Steel Oval Direct Fit Exhaust Muffler
    More Info
    Vehicle Fitment
    • 2011 Chevrolet Impala | All Trims | 6 Cyl 3.9L
    $50.00
  • OEM 2011 Chevrolet Impala Muffler W/Tailpipe Diagram - 20881330
    View Related Parts

    OEM (Genuine) 2011 Chevrolet Impala Muffler W/Tailpipe

    PartNumber: 20881330
    OEM 2011 Chevrolet Impala Muffler W/Tailpipe - 20881330
    Product Specifications
    • Notes: Impala; 3.9L; 3.9 Liter
    • Other Names: Muffler, Muffler W/Tailpipe
    • Item Dimensions: 117.8 x 50.8 x 9.5 inches
    • Item Weight: 59.10 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2011 Chevrolet Impala Muffler W/Tailpipe
    More Info
    Vehicle Fitment
    • 2011 Chevrolet Impala | LS, LTZ, Police | 6 Cyl 3.9 L FLEX
  • OEM 2011 Chevrolet Impala Exhaust Muffler Assembly (W/ Exhaust Pipe & Tail Pipe) Diagram - 20963869
    View Related Parts

    OEM (Genuine) 2011 Chevrolet Impala Exhaust Muffler Assembly (W/ Exhaust Pipe & Tail Pipe)

    PartNumber: 20963869
    OEM 2011 Chevrolet Impala Exhaust Muffler Assembly (W/ Exhaust Pipe & Tail Pipe) - 20963869
    Product Specifications
    • Notes: 3.5 Liter; Impala; 3.5L
    • Other Names: Muffler, Muffler W/Tailpipe
    • Item Dimensions: 112.8 x 28.7 x 9.8 inches
    • Item Weight: 38.00 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 20881329, 25794072, 15849114
    • Part Description: 2011 Chevrolet Impala Exhaust Muffler Assembly (W/ Exhaust Pipe & Tail Pipe)
    More Info
    Vehicle Fitment
    • 2011 Chevrolet Impala | 50th Anniversary Edition, LS, LT | 6 Cyl 3.5 L FLEX, 6 Cyl 3.5 L GAS