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Flowtech 91673-1FLT Shorty Headers, 2004-08 Ford F-150, 5.4L, Ceramic

Rebate

Flowtech 91673-1FLT Shorty Headers, 2004-08 Ford F-150, 5.4L, Ceramic
Flowtech Exhaust

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#425916731FLT

Flowtech 91673-1FLT Shorty Headers, 2004-08 Ford F-150, 5.4L, Ceramic

$639.95

/set

Factory Shipped

$711.95

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Product Summary

Shorty Header Tube Type, Standard Flange Style, Steel

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    Key Specs

    MFG. Part #91673-1FLT
    Header Tube TypeShorty
    Flange StyleStandard
    Primary Tube Diameter1-5/8"
    Material TypeSteel
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    Flowtech Exhaust 91673-1FLT Details

    Flowtech Headers are the perfect combination of quality and value. This header fits the popular 2004-08 Ford F-150 V8-5.4L 2WD/4WD. This header features 1-5/8" primary tubes and a 2-1/2" collector for increased exhaust flow for increasing performance, improving throttle response and providing a broad torque curve. This header accommodates all emission control devices and comes with premium aluminum header gaskets and hardware. This header is coated with Satin Silver Metallic Ceramic Coating. 50 state legal - CARB EO D-115-19

    • 50 state legal
    • Heavy duty 16-gauge tubing for increased strength and durability
    • 1-5/8 primary tube diameter 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
    • TIG-welded, machined 3/8 header flange for a leak-free seal and maximum strength
    • Mandrel-bent tubing provide consistent tubing diameter for smooth flow and increased exhaust velocity
    • Accommodates all factory OE components
    • Available in a high heat resistant black paint or a satin silver metallic ceramic thermal barrier coating
    • Premium aluminum header gaskets included
    • Headers are a must if you are using a cold air intake, cat-back exhaust system or tuner

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    Holley October Promo 10% Off Select Parts Sale

    Holley October Promo 10% Off Select Parts SaleHolleyOctoberPromo10%OffSelectPartsSale

    Holley's October Promo 10% Off Select Parts Sale, running from September 28, 2026, through November 1, 2026. For a limited time, customers can save up to 10% off on select Holley parts, making it the perfect opportunity to upgrade your ride with premium Holley branded parts including Holley, Brawler, Quick Fuel, Leg Wheels, Rev Wheels, Rocket Racing, Flowtech, Edge, Racequip, Apr and Dinan. Purchases must be made between September 28, 2026, through November 1, 2026. This limited-time offer applies to qualifying Holley branded parts purchased during the promotional period. Following the promotion, these parts will revert back to standard pricing.

    Flowtech Exhaust 91673-1FLT Specifications

    D-115-19
    KEY SPECS
    MFG. Part #91673-1FLT
    BrandFlowtech Exhaust
    Header Tube TypeShorty
    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 Code090127689004
    Flange Thickness0.375"
    Emission Code1

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