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Flowtech Headers 91673FLT Headers, Shorty, Steel, Painted, 2.5 in. Collector, D-port, Ford, 5.4L, Pair

SKU: BIG91673FLT

Headers

Flowtech Headers 91673FLT Headers, Shorty, Steel, Painted, 2.5 in. Collector, D-port, Ford, 5.4L, Pair

SKU: BIG91673FLT

Headers
A$1,026.43
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
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Description

Flowtech headers are designed to provide optimum exhaust flow for increased horsepower, torque, fuel economy, and improved throttle response. Leak-tested for maximum performance, they feature the industry's best welds for durability and are carefully engineered for precise fit. Available for a wide range of applications, they're offered in block hugger, competition, fenderwell, lakester, long tube, mid-length, shorty, upright, and turbo styles. Varying with the application, Flowtech headers are constructed from sturdy and lightweight cold-rolled mild steel or stainless steel for increased strength and durability. All tubing is mandrel-bent to provide consistent tubing diameter for smooth flow and increased exhaust velocity. Extra-thick, machined header flanges provide a leak-free seal and maximum strength. For long-term rust and corrosion-resistance, available finishes include natural and polished stainless steel, high heat-resistant black paint, or a satin silver metallic ceramic thermal barrier coating. All mounting hardware and premium gaskets are included.

Important notes: Breaking in an engine with ceramic coated headers WILL result in damage to the coating and will VOID all warranties. Ceramic coated headers require several heat cycles to fully cure before they will withstand extreme heat. Hooker recommends using cast iron exhaust manifolds or old headers to break in new engines to avoid coating damage. Flowtech does not recommend the use of header wraps as this will void the warranty.

Part Type

Headers - Shorty Style 04-08 Ford F150 5.4L

Data: v4.2 - Upd: 2026-10-09 05:36:46

Specifications

Product Attributes - Brand
Flowtech
Product Attributes - Manufacturer's Part Number
91673FLT
Product Attributes - Part Type
Headers
Product Attributes - Product Line
Flowtech Headers
Product Attributes - UPC
090127688991
Product Attributes - Header Style
Shorty
Product Attributes - Header Material
Steel
Product Attributes - Primary Tube Outside Diameter (in.)
1 5/8 in.
Product Attributes - Header Color
High temperature black paint
Product Attributes - Flange Style
Standard
Product Attributes - Weld-Up
No
Product Attributes - Collector Attachment
Stock flange
Product Attributes - Collector Diameter (in.)
2.50
Product Attributes - Collector Reducers Included
No
Product Attributes - Tuned
No
Product Attributes - Primary Tube Gauge
16-gauge
Product Attributes - Flange Thickness (in.)
0.38 in.
Product Attributes - Bolts/Studs Included
No
Product Attributes - Gaskets Included
Yes
Product Attributes - Crossover Pipe Included
No
Product Attributes - Catalytic Converter(s) Included
No
Product Attributes - Motor Mounts Included
No
Product Attributes - Transmission Mount Included
No
Product Attributes - Quantity
Sold as a pair.
Product Attributes - CARB EO Number(s)
D-115-19
Product Attributes - Emissions
California EO Approved

Reference Information

Brand Name/s Flowtech
StreetFX SKU big91673FLT
SFX Item ID 5092228
Supplier Item Code 5092228
Manufacturer SKU 91673FLT
Manufacturer UPC 90127688991
Alternative References FLT91673, 5.4L

Compatibility

Application Data
  • Air ConditioningYes
    Automatic Transmission Column ShiftNo
    Automatic Transmission Floor ShiftYes
    Beginning Year2007
    DrivetrainRWD
    Ending Year2008
    Engine FamilyFORD MODULAR V8 GAS
    Engine Size5.4L/330
    Engine TypeV8
    MakeFORD
    ModelF-150
    Power Brakes (application)No
    Power SteeringYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    SubmodelFX2
  • Air ConditioningYes
    Automatic Transmission Column ShiftNo
    Automatic Transmission Floor ShiftYes
    Beginning Year2004
    Drivetrain4WD
    Ending Year2008
    Engine FamilyFORD MODULAR V8 GAS
    Engine Size5.4L/330
    Engine TypeV8
    MakeFORD
    ModelF-150
    Power Brakes (application)No
    Power SteeringYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    SubmodelFX4
  • Air ConditioningYes
    Automatic Transmission Column ShiftNo
    Automatic Transmission Floor ShiftYes
    Beginning Year2006
    Drivetrain4WD
    Ending Year2008
    Engine FamilyFORD MODULAR V8 GAS
    Engine Size5.4L/330
    Engine TypeV8
    MakeFORD
    ModelF-150
    Power Brakes (application)No
    Power SteeringYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    SubmodelHARLEY-DAVIDSON EDITION
  • Air ConditioningYes
    Automatic Transmission Column ShiftNo
    Automatic Transmission Floor ShiftYes
    Beginning Year2006
    DrivetrainRWD
    Ending Year2008
    Engine FamilyFORD MODULAR V8 GAS
    Engine Size5.4L/330
    Engine TypeV8
    MakeFORD
    ModelF-150
    Power Brakes (application)No
    Power SteeringYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    SubmodelHARLEY-DAVIDSON EDITION
  • Air ConditioningYes
    Automatic Transmission Column ShiftNo
    Automatic Transmission Floor ShiftYes
    Beginning Year2005
    Drivetrain4WD
    Ending Year2008
    Engine FamilyFORD MODULAR V8 GAS
    Engine Size5.4L/330
    Engine TypeV8
    MakeFORD
    ModelF-150
    Power Brakes (application)No
    Power SteeringYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    SubmodelKING RANCH
  • Air ConditioningYes
    Automatic Transmission Column ShiftNo
    Automatic Transmission Floor ShiftYes
    Beginning Year2005
    DrivetrainRWD
    Ending Year2008
    Engine FamilyFORD MODULAR V8 GAS
    Engine Size5.4L/330
    Engine TypeV8
    MakeFORD
    ModelF-150
    Power Brakes (application)No
    Power SteeringYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    SubmodelKING RANCH
  • Air ConditioningYes
    Automatic Transmission Column ShiftNo
    Automatic Transmission Floor ShiftYes
    Beginning Year2004
    Drivetrain4WD
    Ending Year2008
    Engine FamilyFORD MODULAR V8 GAS
    Engine Size5.4L/330
    Engine TypeV8
    MakeFORD
    ModelF-150
    Power Brakes (application)No
    Power SteeringYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    SubmodelLARIAT
  • Air ConditioningYes
    Automatic Transmission Column ShiftNo
    Automatic Transmission Floor ShiftYes
    Beginning Year2004
    DrivetrainRWD
    Ending Year2008
    Engine FamilyFORD MODULAR V8 GAS
    Engine Size5.4L/330
    Engine TypeV8
    MakeFORD
    ModelF-150
    Power Brakes (application)No
    Power SteeringYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    SubmodelLARIAT
  • Air ConditioningYes
    Automatic Transmission Column ShiftNo
    Automatic Transmission Floor ShiftYes
    Beginning Year2008
    DrivetrainAWD
    Ending Year2008
    Engine FamilyFORD MODULAR V8 GAS
    Engine Size5.4L/330
    Engine TypeV8
    MakeFORD
    ModelF-150
    Power Brakes (application)No
    Power SteeringYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    SubmodelLIMITED
  • Air ConditioningYes
    Automatic Transmission Column ShiftNo
    Automatic Transmission Floor ShiftYes
    Beginning Year2008
    DrivetrainRWD
    Ending Year2008
    Engine FamilyFORD MODULAR V8 GAS
    Engine Size5.4L/330
    Engine TypeV8
    MakeFORD
    ModelF-150
    Power Brakes (application)No
    Power SteeringYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    SubmodelLIMITED
  • Air ConditioningYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Beginning Year2004
    Drivetrain4WD
    Ending Year2008
    Engine FamilyFORD MODULAR V8 GAS
    Engine Size5.4L/330
    Engine TypeV8
    MakeFORD
    ModelF-150
    Power Brakes (application)No
    Power SteeringYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    SubmodelXL
  • Air ConditioningYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Beginning Year2004
    DrivetrainRWD
    Ending Year2008
    Engine FamilyFORD MODULAR V8 GAS
    Engine Size5.4L/330
    Engine TypeV8
    MakeFORD
    ModelF-150
    Power Brakes (application)No
    Power SteeringYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    SubmodelXL
  • Air ConditioningYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Beginning Year2004
    Drivetrain4WD
    Ending Year2008
    Engine FamilyFORD MODULAR V8 GAS
    Engine Size5.4L/330
    Engine TypeV8
    MakeFORD
    ModelF-150
    Power Brakes (application)No
    Power SteeringYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    SubmodelXLT
  • Air ConditioningYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Beginning Year2004
    DrivetrainRWD
    Ending Year2008
    Engine FamilyFORD MODULAR V8 GAS
    Engine Size5.4L/330
    Engine TypeV8
    MakeFORD
    ModelF-150
    Power Brakes (application)No
    Power SteeringYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    SubmodelXLT

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