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2011 Chevrolet Avalanche
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Exhaust Manifolds, Pipes & Mufflers
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4 Products found

2 Q&A for Exhaust Pipe Repair
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  • OEM 2011 Chevrolet Avalanche Converter & Pipe - 20854453

    OEM (Genuine) 2011 Chevrolet Avalanche Converter & Pipe

    PartNumber: 20854453
    $2080.18 MSRP: $3134.37
    You Save: $1054.19 (34%)
    Product Specifications
    • Other Names: Catalytic Converter, Converter & Pipe
    • Item Dimensions: 51.2 x 29.9 x 14.2 inches
    • Item Weight: 35.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 19418926
    • Part Description: 2011 Chevrolet Avalanche Converter & Pipe
    More Info
  • OEM 2011 Chevrolet Avalanche Catalytic Converter - 20854454

    OEM (Genuine) 2011 Chevrolet Avalanche Catalytic Converter

    PartNumber: 20854454
    $2235.37 MSRP: $3358.95
    You Save: $1123.58 (34%)
    Product Specifications
    • Other Names: Catalytic Converter
    • Item Dimensions: 45.3 x 29.9 x 14.4 inches
    • Item Weight: 37.40 Pounds
    • Replaced by: 19418941
    • Part Description: 2011 Chevrolet Avalanche Catalytic Converter
    More Info
  • OEM 2011 Chevrolet Avalanche Converter & Pipe - 19418941

    OEM (Genuine) 2011 Chevrolet Avalanche Converter & Pipe

    PartNumber: 19418941
    $2235.37 MSRP: $3358.95
    You Save: $1123.58 (34%)
    Product Specifications
    • Notes: California, 5.3 & 6.0 Liter
    • Other Names: Catalytic Converter, Converter & Pipe
    • Fitment Type: Direct Replacement
    • Replaces: 20854454, 15905948
    • Part Description: 2011 Chevrolet Avalanche Converter & Pipe
    More Info
    Vehicle Fitment
    • 2011 Chevrolet Avalanche | Black Diamond LS, Black Diamond LT, Black Diamond LTZ, LS, LT, LTZ | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
  • OEM 2011 Chevrolet Avalanche Muffler & Pipe - 20882404
    Product Specifications
    • Notes: 5.3 Liter
    • Other Names: Muffler, Muffler & Pipe
    • Item Dimensions: 115.3 x 28.6 x 15.1 inches
    • Item Weight: 231.60 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 20779912, 25940547
    • Part Description: 2011 Chevrolet Avalanche Muffler & Pipe
    More Info
    Vehicle Fitment
    • 2011 Chevrolet Avalanche | Black Diamond LS, Black Diamond LT, Black Diamond LTZ, LS, LT, LTZ | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS

FAQ for Exhaust Pipe Repair

Q: How do you fix a muffler buzz?
A:
Raise and support the vehicle, mark the position of the heat shield and straps, cut and remove the heat shield straps, position the heat shield to the muffler and install new heat shield straps on the muffler shell in the positions marked, position the strap screw heads and cut off excess strap material.
By Bob
GM Specialist
09/12/2021
Q: What causes the Pinging/popping/snapping noise from the exhaust system?
A:
The pinging/popping/snapping noise is due to the exhaust system cooling down and is normal for this exhaust system.
By Bob
GM Specialist
01/12/2021