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    Flowmaster 40 Series Muffler
    App: 2007-2008 GMC Sierra 3500 HD
    Brand: Flowmaster
    Part #: 942445
    Notes: "FLOWMASTER SUPER 44 DELTA FLOW MUFFLER, BLACK ALUMINIZED STEEL -- 2.25 Center Inlet/Outlet, 4 Thick X 9.75" Wide,13" Case Length, The Most Aggressive, Deepest Toned Street And Strip Muffler By Flowmaster, It Offers Maximum Performance, An Improved Flow Path Radius, And Generates More Torque And Power Than Any Other 40 Series Muffler, With Manufacturer's Limited 3-Year Warranty"
    Material: Aluminum Aluminized Steel
    Series: 40 Series
    Price: $87.22

    Quantity

    MakeModelYear RangeChassis/Engine
    GMCSierra 3500 HD2007 - 20088Cyl 6.0L SLE
    GMCSierra 3500 HD2007 - 20088Cyl 6.0L SLT
    GMCSierra 3500 HD2007 - 20088Cyl 6.0L WT
    GMCSierra 3500 HD2007 - 20088Cyl 6.6L SLE
    GMCSierra 3500 HD2007 - 20088Cyl 6.6L SLT
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    Flowmaster 40 Series Muffler
    App: 2004-2008 GMC Canyon
    Brand: Flowmaster
    Part #: 942445
    Notes: "FLOWMASTER SUPER 44 DELTA FLOW MUFFLER, BLACK ALUMINIZED STEEL -- 2.25 Center Inlet/Outlet, 4 Thick X 9.75" Wide,13" Case Length, The Most Aggressive, Deepest Toned Street And Strip Muffler By Flowmaster, It Offers Maximum Performance, An Improved Flow Path Radius, And Generates More Torque And Power Than Any Other 40 Series Muffler, With Manufacturer's Limited 3-Year Warranty"
    Material: Aluminum Aluminized Steel
    Series: 40 Series
    Price: $87.22

    Quantity

    MakeModelYear RangeChassis/Engine
    GMCCanyon20045Cyl 3.5L SL
    GMCCanyon2004 - 20064Cyl 2.8L SL
    GMCCanyon2004 - 20064Cyl 2.8L SLE
    GMCCanyon2004 - 20065Cyl 3.5L SLE
    GMCCanyon20054Cyl 2.8L Z71 Fleet
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    Flowmaster 40 Series Muffler
    App: 2002-2008 GMC Envoy
    Brand: Flowmaster
    Part #: 942445
    Notes: "FLOWMASTER SUPER 44 DELTA FLOW MUFFLER, BLACK ALUMINIZED STEEL -- 2.25 Center Inlet/Outlet, 4 Thick X 9.75" Wide,13" Case Length, The Most Aggressive, Deepest Toned Street And Strip Muffler By Flowmaster, It Offers Maximum Performance, An Improved Flow Path Radius, And Generates More Torque And Power Than Any Other 40 Series Muffler, With Manufacturer's Limited 3-Year Warranty"
    Material: Aluminum Aluminized Steel
    Series: 40 Series
    Price: $87.22

    Quantity

    MakeModelYear RangeChassis/Engine
    GMCEnvoy2002 - 20066Cyl 4.2L XL SLE
    GMCEnvoy2002 - 20066Cyl 4.2L XL SLT
    GMCEnvoy2002 - 20086Cyl 4.2L SLE
    GMCEnvoy2002 - 20086Cyl 4.2L SLT
    GMCEnvoy2003 - 20058Cyl 5.3L XL SLE
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    Flowmaster 40 Series Muffler
    App: 2002-2008 GMC Sierra Denali
    Brand: Flowmaster
    Part #: 942445
    Notes: "FLOWMASTER SUPER 44 DELTA FLOW MUFFLER, BLACK ALUMINIZED STEEL -- 2.25 Center Inlet/Outlet, 4 Thick X 9.75" Wide,13" Case Length, The Most Aggressive, Deepest Toned Street And Strip Muffler By Flowmaster, It Offers Maximum Performance, An Improved Flow Path Radius, And Generates More Torque And Power Than Any Other 40 Series Muffler, With Manufacturer's Limited 3-Year Warranty"
    Material: Aluminum Aluminized Steel
    Series: 40 Series
    Price: $87.22

    Quantity

    MakeModelYear RangeChassis/Engine
    GMCSierra Denali2002 - 20068Cyl 6.0L Base
    GMCSierra Denali20078Cyl 6.0L Classic
    GMCSierra Denali2007 - 20088Cyl 6.2L Base





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    Flowmaster 40 Series Muffler
    App: 2001-2008 GMC Sierra 2500 HD
    Brand: Flowmaster
    Part #: 942445
    Notes: "FLOWMASTER SUPER 44 DELTA FLOW MUFFLER, BLACK ALUMINIZED STEEL -- 2.25 Center Inlet/Outlet, 4 Thick X 9.75" Wide,13" Case Length, The Most Aggressive, Deepest Toned Street And Strip Muffler By Flowmaster, It Offers Maximum Performance, An Improved Flow Path Radius, And Generates More Torque And Power Than Any Other 40 Series Muffler, With Manufacturer's Limited 3-Year Warranty"
    Material: Aluminum Aluminized Steel
    Series: 40 Series
    Price: $87.22

    Quantity

    MakeModelYear RangeChassis/Engine
    GMCSierra 2500 HD2001 - 20068Cyl 8.1L SLE
    GMCSierra 2500 HD2001 - 20068Cyl 8.1L SLT
    GMCSierra 2500 HD2001 - 20088Cyl 6.0L SLE
    GMCSierra 2500 HD2001 - 20088Cyl 6.0L SLT
    GMCSierra 2500 HD2001 - 20088Cyl 6.6L SLE
    Show All Fits