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Gibson 01-03 Chevrolet Silverado 3500 Base 8.1L 1-3/4in 16 Gauge Performance Header - Stainless

SKU: GIBGP131S

Headers

GIB Headers - Stainless...

Gibson 01-03 Chevrolet Silverado 3500 Base 8.1L 1-3/4in 16 Gauge Performance Header - Stainless

SKU: GIBGP131S

Headers

GIB Headers - Stainless...

A$1,390.38
LAST ONE! Est Ship 3-5 days. LAST ONE! This is the last unit at our distribution centre. Contact us if you need more. The ETA is the approximate time required to prepare your order for dispatch.
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Description

Every Gibson Performance Header is Dyno-tuned and engineered to deliver more usable horsepower and torque at low and mid-range RPM highway speeds. Improves engines ability to breathe and cooler operating engine temperature. Designed as a direct replacement for the factory manifolds, using the stock crossover pipe. They are well suited for lowered and raised vehicles, street and off-road. 50 State Street legal. Meets EPA and CARB requirements. Will not affect the factory warranty. No welding required. Uses OEM style connections. 3/8 in. Heavy Duty Laser Cut Port Flanges- No Warping or Leaking. Premium Gaskets and Hardware included. Backed by a Lifetime Limited Warranty.

Part Type

Exhaust Header

Data: v4.2 - Upd: 2026-10-13 16:43:20

Features

  • Heavy Duty 3/8 in. Thick Laser Cut Port Flanges
  • Heavy Duty 409L Stainless 16 Gauge Tubing
  • Mandrel Bent Tubing
  • No Welding Required
  • Premium Gaskets and Hardware
  • Uses OEM Style Connections

Specifications

Product Attributes - UPC
677418005899
Product Attributes - Brand
Gibson Performance Exhaust
Product Attributes - Notes
Fits models with EGR. No provisions for air injection.
Product Attributes - Tuned
No
Product Attributes - Weld-Up
No
Product Attributes - Quantity
Sold as a pair.
Product Attributes - Emissions
California EO Approved
Product Attributes - Part Type
Headers
Product Attributes - Flange Style
Standard
Product Attributes - Header Color
Natural
Product Attributes - Header Style
Shorty
Product Attributes - Product Line
Gibson Headers
Product Attributes - Header Material
409 stainless steel
Product Attributes - Gaskets Included
Yes
Product Attributes - CARB EO Number(s)
D-411-11
Product Attributes - Primary Tube Gauge
16-gauge
Product Attributes - Bolts/Studs Included
Yes
Product Attributes - Collector Attachment
Stock flange
Product Attributes - Motor Mounts Included
No
Product Attributes - Flange Thickness (in.)
0.38 in.
Product Attributes - Crossover Pipe Included
No
Product Attributes - Manufacturer's Part Number
GP131S
Product Attributes - Collector Reducers Included
No
Product Attributes - Transmission Mount Included
No
Product Attributes - Catalytic Converter(s) Included
No
Product Attributes - Primary Tube Outside Diameter (in.)
1 3/4 in.

Reference Information

Brand Name/s Gibson
StreetFX SKU gibGP131S
SFX Item ID 4084304
Supplier Item Code 4084304
Manufacturer SKU GP131S
Manufacturer UPC 677418005899
Alternative References 8.1L, 1-3/4in

Compatibility

Application Data
  • MakeCHEVROLET
    ModelAVALANCHE 2500
    SubmodelBASE
    Beginning Year2002
    Ending Year2003
    Engine TypeV8
    Engine FamilyChevy big block Gen VII
    Engine Size8.1L/496
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Footnotes1 - Has no air injection. 9 - Automatic only. 18 - With EGR fitting.
  • MakeCHEVROLET
    ModelAVALANCHE 2500
    SubmodelBASE
    Beginning Year2002
    Ending Year2003
    Engine TypeV8
    Engine FamilyChevy big block Gen VII
    Engine Size8.1L/496
    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
    Footnotes1 - Has no air injection. 9 - Automatic only. 18 - With EGR fitting.
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelBASE
    Beginning Year2001
    Ending Year2003
    Engine TypeV8
    Engine FamilyChevy big block Gen VII
    Engine Size8.1L/496
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Footnotes1 - Has no air injection. 9 - Automatic only. 18 - With EGR fitting.
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelBASE
    Beginning Year2001
    Ending Year2003
    Engine TypeV8
    Engine FamilyChevy big block Gen VII
    Engine Size8.1L/496
    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
    Footnotes1 - Has no air injection. 9 - Automatic only. 18 - With EGR fitting.
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelLS
    Beginning Year2001
    Ending Year2003
    Engine TypeV8
    Engine FamilyChevy big block Gen VII
    Engine Size8.1L/496
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Footnotes1 - Has no air injection. 9 - Automatic only. 18 - With EGR fitting.
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelLS
    Beginning Year2001
    Ending Year2003
    Engine TypeV8
    Engine FamilyChevy big block Gen VII
    Engine Size8.1L/496
    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
    Footnotes1 - Has no air injection. 9 - Automatic only. 18 - With EGR fitting.
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelLT
    Beginning Year2001
    Ending Year2003
    Engine TypeV8
    Engine FamilyChevy big block Gen VII
    Engine Size8.1L/496
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Footnotes1 - Has no air injection. 9 - Automatic only. 18 - With EGR fitting.
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelLT
    Beginning Year2001
    Ending Year2003
    Engine TypeV8
    Engine FamilyChevy big block Gen VII
    Engine Size8.1L/496
    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
    Footnotes1 - Has no air injection. 9 - Automatic only. 18 - With EGR fitting.
  • MakeCHEVROLET
    ModelSILVERADO 3500
    SubmodelBASE
    Beginning Year2001
    Ending Year2003
    Engine TypeV8
    Engine FamilyChevy big block Gen VII
    Engine Size8.1L/496
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Footnotes1 - Has no air injection. 9 - Automatic only. 18 - With EGR fitting.
  • MakeCHEVROLET
    ModelSILVERADO 3500
    SubmodelBASE
    Beginning Year2001
    Ending Year2003
    Engine TypeV8
    Engine FamilyChevy big block Gen VII
    Engine Size8.1L/496
    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
    Footnotes1 - Has no air injection. 9 - Automatic only. 18 - With EGR fitting.
  • MakeCHEVROLET
    ModelSILVERADO 3500
    SubmodelLS
    Beginning Year2001
    Ending Year2003
    Engine TypeV8
    Engine FamilyChevy big block Gen VII
    Engine Size8.1L/496
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Footnotes1 - Has no air injection. 9 - Automatic only. 18 - With EGR fitting.
  • MakeCHEVROLET
    ModelSILVERADO 3500
    SubmodelLS
    Beginning Year2001
    Ending Year2003
    Engine TypeV8
    Engine FamilyChevy big block Gen VII
    Engine Size8.1L/496
    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
    Footnotes1 - Has no air injection. 9 - Automatic only. 18 - With EGR fitting.
  • MakeCHEVROLET
    ModelSILVERADO 3500
    SubmodelLT
    Beginning Year2001
    Ending Year2003
    Engine TypeV8
    Engine FamilyChevy big block Gen VII
    Engine Size8.1L/496
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Footnotes1 - Has no air injection. 9 - Automatic only. 18 - With EGR fitting.
  • MakeCHEVROLET
    ModelSILVERADO 3500
    SubmodelLT
    Beginning Year2001
    Ending Year2003
    Engine TypeV8
    Engine FamilyChevy big block Gen VII
    Engine Size8.1L/496
    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
    Footnotes1 - Has no air injection. 9 - Automatic only. 18 - With EGR fitting.
  • MakeCHEVROLET
    ModelSUBURBAN 2500
    SubmodelBASE
    Beginning Year2001
    Ending Year2001
    Engine TypeV8
    Engine FamilyChevy big block Gen VII
    Engine Size8.1L/496
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Footnotes1 - Has no air injection. 9 - Automatic only. 18 - With EGR fitting.
  • MakeCHEVROLET
    ModelSUBURBAN 2500
    SubmodelBASE
    Beginning Year2001
    Ending Year2001
    Engine TypeV8
    Engine FamilyChevy big block Gen VII
    Engine Size8.1L/496
    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
    Footnotes1 - Has no air injection. 9 - Automatic only. 18 - With EGR fitting.
  • MakeCHEVROLET
    ModelSUBURBAN 2500
    SubmodelLS
    Beginning Year2001
    Ending Year2003
    Engine TypeV8
    Engine FamilyChevy big block Gen VII
    Engine Size8.1L/496
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Footnotes1 - Has no air injection. 9 - Automatic only. 18 - With EGR fitting.
  • MakeCHEVROLET
    ModelSUBURBAN 2500
    SubmodelLS
    Beginning Year2001
    Ending Year2003
    Engine TypeV8
    Engine FamilyChevy big block Gen VII
    Engine Size8.1L/496
    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
    Footnotes1 - Has no air injection. 9 - Automatic only. 18 - With EGR fitting.
  • MakeCHEVROLET
    ModelSUBURBAN 2500
    SubmodelLT
    Beginning Year2001
    Ending Year2003
    Engine TypeV8
    Engine FamilyChevy big block Gen VII
    Engine Size8.1L/496
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Footnotes1 - Has no air injection. 9 - Automatic only. 18 - With EGR fitting.
  • MakeCHEVROLET
    ModelSUBURBAN 2500
    SubmodelLT
    Beginning Year2001
    Ending Year2003
    Engine TypeV8
    Engine FamilyChevy big block Gen VII
    Engine Size8.1L/496
    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
    Footnotes1 - Has no air injection. 9 - Automatic only. 18 - With EGR fitting.
  • MakeGMC
    ModelSIERRA 2500 HD
    SubmodelBASE
    Beginning Year2002
    Ending Year2003
    Engine TypeV8
    Engine FamilyChevy big block Gen VII
    Engine Size8.1L/496
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Footnotes1 - Has no air injection. 9 - Automatic only. 18 - With EGR fitting.
  • MakeGMC
    ModelSIERRA 2500 HD
    SubmodelBASE
    Beginning Year2002
    Ending Year2003
    Engine TypeV8
    Engine FamilyChevy big block Gen VII
    Engine Size8.1L/496
    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
    Footnotes1 - Has no air injection. 9 - Automatic only. 18 - With EGR fitting.
  • MakeGMC
    ModelSIERRA 2500 HD
    SubmodelSL
    Beginning Year2001
    Ending Year2002
    Engine TypeV8
    Engine FamilyChevy big block Gen VII
    Engine Size8.1L/496
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Footnotes1 - Has no air injection. 9 - Automatic only. 18 - With EGR fitting.
  • MakeGMC
    ModelSIERRA 2500 HD
    SubmodelSL
    Beginning Year2001
    Ending Year2002
    Engine TypeV8
    Engine FamilyChevy big block Gen VII
    Engine Size8.1L/496
    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
    Footnotes1 - Has no air injection. 9 - Automatic only. 18 - With EGR fitting.
  • MakeGMC
    ModelSIERRA 2500 HD
    SubmodelSLE
    Beginning Year2001
    Ending Year2003
    Engine TypeV8
    Engine FamilyChevy big block Gen VII
    Engine Size8.1L/496
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftNo
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftNo
    Footnotes1 - Has no air injection. 9 - Automatic only. 18 - With EGR fitting.

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