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Flowtech 91843-1FLT Shorty Headers, 2002-2013 GM Pickup/SUV, 4.8L/5.3L

Rebate

Flowtech 91843-1FLT Shorty Headers, 2002-2013 GM Pickup/SUV, 4.8L/5.3L
Flowtech Exhaust

|

#425918431FLT

Flowtech 91843-1FLT Shorty Headers, 2002-2013 GM Pickup/SUV, 4.8L/5.3L

$614.95

/each

Factory Shipped

$683.95

Save $69.00


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Product Summary

Shorty Header Tube Type, Round Exhaust Port Shape

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    Key Specs

    MFG. Part #91843-1FLT
    Header Tube TypeShorty
    Exhaust Port ShapeRound
    Flange StyleStandard
    Primary Tube Diameter1-5/8"
    See more specs

    Need To Know

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    855.313.9176
    View the Help Center

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    Flowtech Exhaust 91843-1FLT Details

    Flowtech Headers are the perfect combination of quality and value. These shorty, emission compatible headers fit the popular 02-13 Chevy Silverado/Tahoe/Avalanche/Suburban and GMC Sierra V-8 4.8L/5.3L, 2WD/4WD.

    • Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increased exhaust velocity
    • Heavy duty 16-gauge tubing for increased strength and durability
    • Smooth transition, 1-5/8 diameter primary tubes are used for increased exhaust flow increasing performance and improving throttle response
    • OE style 2-1/2 ball and socket collector connects to factory exhaust head pipe with no cutting or welding
    • TIG-welded, machined 3/8 header flange for a leak-free seal and maximum strength
    • 49-State Legal. Accommodates all factory OE components
    • Premium aluminum header gaskets included
    • Coated in a satin silver metallic ceramic thermal barrier coating for an aggressive look and reduced underhood temperatures
    • Headers are a must if you are using a cold air intake, cat-back exhaust system or tuner

    Charts

    Rebates

    Holley IRS Sale 2026

    Save 10% instantly on select products across the Holley family of performance brands during the annual Holley I.R.S.Tax Sale. Instant rebate period runs from February 17, 2026 through March 29, 2026.

    Flowtech Exhaust 91843-1FLT Specifications

    D-115-20
    KEY SPECS
    MFG. Part #91843-1FLT
    BrandFlowtech Exhaust
    Header Tube TypeShorty
    Exhaust Port ShapeRound
    Flange StyleStandard
    Primary Tube Diameter1-5/8"
    Material TypeSteel
    ColorSilver
    Weld-UpNo
    Collector Diameter2-1/2 Inch
    FinishCeramic Coated
    Hardware IncludedYes
    Gasket(s) IncludedYes
    CARB EO#
    GENERAL
    Sold in QuantityPair
    GTIN Code090127688731
    Emission Code3

    Fitment

    • GM LM4

    • GM LS6

    • GM LS2

    • GM LSA

    • GM LM7

    • GM LQ9

    • 6.2 Chevy LS V8

    • GM LM7

    • GM LQ9

    • 6.2 Chevy LS V8

    • GM LM7

    • GM LQ9

    • 6.2 Chevy LS V8

    • GM L76

    • GM LC9

    • GM LMG

    • GM LY5

    • GM LY5

    • GM LM7

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • GM LS1

    • GM LS3

    • GM LS1

    • GM LS1

    • GM LS6

    • GM LS2

    • GM LS3

    • 4.8 Chevy LS V8

    • GM LM7

    • 4.8 Chevy LS V8

    • GM L20

    • GM LM7

    • GM LY2

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ9

    • GM LQ4

    • GM LM7

    • GM LQ4

    • GM LQ9

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LS3

    • GM LM4

    • GM LMG

    • GM LY5

    • GM LM7

    • GM L59

    • GM LM7

    • GM LC9

    • GM LMG

    • GM LY5

    • GM LC9

    • GM LMG

    • GM LMG

    • GM LY5

    • GM LQ4

    • GM LMG

    • GM LY5

    • 4.8 Chevy LS V8

    • GM L59

    • GM LM7

    • 4.8 Chevy LS V8

    • GM LMG

    • GM LY5

    • 6.2 Chevy LS V8

    • GM LC9

    • GM LMG

    • GM LC9

    • GM LMG

    • GM LMG

    • GM LY5

    • GM LH6

    • GM LS2

    • GM LM4

    • GM LM4

    • GM LM4

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L33

    • GM LM7

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L33

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L33

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L33

    • GM LQ4

    • GM L20

    • GM LC9

    • GM LMG

    • GM L33

    • GM L59

    • GM LM7

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LM7

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L20

    • GM LM7

    • GM LY2

    • GM LC9

    • GM LMG

    • GM LM7

    • GM L59

    • GM LM7

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • 6.2 Chevy LS V8

    • GM LH8

    • GM LH8

    • GM LS1

    • GM LS3

    • GM LS1

    • GM LS2

    Customer Impersonation Script