Street. Track. Everything between.
Your garage Find parts for your vehicle Select year, make and model to narrow your search.

Flowtech Headers 31142FLT Headers, Shorty, Steel, Silver Ceramic Coated, Chevy, GMC, Pair

SKU: BIG31142FLT

Headers

Flowtech Headers 31142FLT Headers, Shorty, Steel, Silver Ceramic Coated, Chevy, GMC, Pair

SKU: BIG31142FLT

Headers

Sale ends in Calculating...

A$1,075.92
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.
View cart 0
We accept
American Express
Mastercard
Visa
PayPal Checkout
Direct Deposit
Afterpay
Apple Pay
Google Pay
Zip Pay

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

Data: v4.2 - Upd: 2026-10-23 00:23:22

Specifications

Product Attributes - Brand
Flowtech
Product Attributes - Manufacturer's Part Number
31142FLT
Product Attributes - Part Type
Headers
Product Attributes - Product Line
Flowtech Headers
Product Attributes - UPC
090127725580
Product Attributes - Header Style
Shorty
Product Attributes - Header Material
Steel
Product Attributes - Primary Tube Outside Diameter (in.)
1 3/4 in.
Product Attributes - Header Color
Silver ceramic coated
Product Attributes - Flange Style
Standard
Product Attributes - Weld-Up
No
Product Attributes - Collector Attachment
3-bolt 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.

Reference Information

Brand Name/s Flowtech
StreetFX SKU big31142FLT
SFX Item ID 5092251
Supplier Item Code 5092251
Manufacturer SKU 31142FLT
Manufacturer UPC 90127725580

Compatibility

Application Data
  • MakeGMC
    ModelSIERRA 2500 HD CLASSIC
    SubmodelSL
    Beginning Year2005
    Ending Year2009
    Engine TypeV8
    Liter6.0
    CID364
    CC5967
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    DrivetrainRWD
    Engine VIN CodeB
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
  • MakeGMC
    ModelSIERRA 2500 HD CLASSIC
    SubmodelSLE
    Beginning Year2005
    Ending Year2009
    Engine TypeV8
    Liter6.0
    CID364
    CC5967
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    Drivetrain4WD
    Engine VIN CodeU
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
  • MakeGMC
    ModelSIERRA 2500 HD CLASSIC
    SubmodelSLE
    Beginning Year2002
    Ending Year2008
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    DrivetrainAWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Liter6.0
    CID364
    CC5967
    Engine VIN CodeY
  • MakeGMC
    ModelSIERRA 2500 HD CLASSIC
    SubmodelSLE
    Beginning Year2003
    Ending Year2008
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Liter6.0
    CID364
    CC5967
    Engine VIN CodeY
  • MakeGMC
    ModelSIERRA 2500 HD CLASSIC
    SubmodelSLE
    Beginning Year2009
    Ending Year2009
    Engine TypeV8
    Liter6.0
    CID364
    CC5967
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    Drivetrain4WD
    Engine VIN CodeY
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
  • MakeGMC
    ModelSIERRA 2500 HD CLASSIC
    SubmodelSLE
    Beginning Year2009
    Ending Year2009
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Liter6.0
    CID364
    CC5967
    Engine VIN CodeY
  • MakeGMC
    ModelSIERRA 2500 HD CLASSIC
    SubmodelSLT
    Beginning Year2005
    Ending Year2002
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Liter6.0
    CID364
    CC5967
    Engine VIN CodeG
  • MakeGMC
    ModelSIERRA 2500 HD CLASSIC
    SubmodelSLT
    Beginning Year2002
    Ending Year2002
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Liter6.0
    CID364
    CC5967
    Engine VIN CodeG
  • MakeGMC
    ModelSIERRA 2500 HD CLASSIC
    SubmodelSLT
    Beginning Year2002
    Ending Year2002
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Liter6.0
    CID364
    CC5967
    Engine VIN CodeK
  • MakeGMC
    ModelSIERRA 2500 HD CLASSIC
    SubmodelSLT
    Beginning Year2005
    Ending Year2003
    Engine TypeV8
    Engine FamilyGM Gas/Electric hybrid V8
    Engine Size6.0L/364
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Liter6.0
    CID364
    CC5967
    Engine VIN CodeU
  • MakeGMC
    ModelSIERRA 2500 HD CLASSIC
    SubmodelSLT
    Beginning Year2003
    Ending Year2003
    Engine TypeV8
    Engine FamilyGM Gas/Electric hybrid V8
    Engine Size6.0L/364
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Liter6.0
    CID364
    CC5967
    Engine VIN CodeU
  • MakeGMC
    ModelSIERRA 2500 HD CLASSIC
    SubmodelWT
    Beginning Year2005
    Ending Year2006
    Engine TypeV8
    Liter6.0
    CID364
    CC5967
    Engine FamilyGM Gas/Electric hybrid V8
    Engine Size6.0L/364
    DrivetrainRWD
    Engine VIN CodeJ
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
  • MakeGMC
    ModelSIERRA 2500 HD CLASSIC
    SubmodelWT
    Beginning Year2005
    Ending Year2006
    Engine TypeV8
    Liter6.0
    CID364
    CC5967
    Engine FamilyGM Gas/Electric hybrid V8
    Engine Size6.0L/364
    Drivetrain4WD
    Engine VIN CodeJ
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
  • MakeGMC
    ModelSIERRA 2500 HD
    SubmodelSLT
    Beginning Year2011
    Ending Year2002
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    DrivetrainAWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Liter6.0
    CID364
    CC5967
    Engine VIN CodeU
  • MakeGMC
    ModelSIERRA 2500 HD
    SubmodelSLT
    Beginning Year2011
    Ending Year2002
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Liter6.0
    CID364
    CC5967
    Engine VIN CodeG
  • MakeGMC
    ModelSIERRA 2500 HD
    SubmodelBASE
    Beginning Year2011
    Ending Year2002
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Liter6.0
    CID364
    CC5967
    Engine VIN CodeK
  • MakeGMC
    ModelSIERRA 2500 HD
    SubmodelDENALI
    Beginning Year2011
    Ending Year2004
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Liter6.0
    CID364
    CC5967
    Engine VIN CodeN
  • MakeGMC
    ModelSIERRA 2500 HD
    SubmodelSL
    Beginning Year2005
    Ending Year2004
    Engine TypeV8
    Liter6.0
    CID364
    CC5967
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    DrivetrainRWD
    Engine VIN CodeN
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
  • MakeGMC
    ModelSIERRA 2500 HD
    SubmodelSL
    Beginning Year2005
    Ending Year2005
    Engine TypeV8
    Liter6.0
    CID364
    CC5967
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    Drivetrain4WD
    Engine VIN CodeG
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
  • MakeGMC
    ModelSIERRA 2500 HD
    SubmodelSL
    Beginning Year2006
    Ending Year2005
    Engine TypeV8
    Engine FamilyGM Gas/Electric hybrid V8
    Engine Size6.0L/364
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Liter6.0
    CID364
    CC5967
    Engine VIN Code5
  • MakeGMC
    ModelSIERRA 2500 HD
    SubmodelSL
    Beginning Year2006
    Ending Year2009
    Engine TypeV8
    Engine FamilyGM Gas/Electric hybrid V8
    Engine Size6.0L/364
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Liter6.0
    CID364
    CC5967
    Engine VIN Code5
  • MakeGMC
    ModelSIERRA 2500 HD
    SubmodelSLE
    Beginning Year2010
    Ending Year2005
    Engine TypeV8
    Engine FamilyGM Gas/Electric hybrid V8
    Engine Size6.0L/364
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Liter6.0
    CID364
    CC5967
    Engine VIN CodeJ
  • MakeGMC
    ModelSIERRA 2500 HD
    SubmodelSLE
    Beginning Year2002
    Ending Year2007
    Engine TypeV8
    Engine FamilyGM Gas/Electric hybrid V8
    Engine Size6.0L/364
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Liter6.0
    CID364
    CC5967
    Engine VIN CodeU
  • MakeGMC
    ModelSIERRA 2500 HD
    SubmodelSL
    Beginning Year2003
    Ending Year2007
    Engine TypeV8
    Liter6.0
    CID364
    CC5967
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    DrivetrainRWD
    Engine VIN CodeG
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
  • MakeGMC
    ModelSIERRA 2500 HD
    SubmodelSL
    Beginning Year2003
    Ending Year2004
    Engine TypeV8
    Liter6.0
    CID364
    CC5967
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    DrivetrainAWD
    Engine VIN CodeN
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo

Loading compatibility information...

Keep shopping

More from Flowtech