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MagnaFlow California Direct Fit Converter 03 Cadillac Tahoe 4.8L

SKU: MAG4451419

Catalytic Converters

MAG Converter Direct Fit...

MagnaFlow California Direct Fit Converter 03 Cadillac Tahoe 4.8L

SKU: MAG4451419

Catalytic Converters

MAG Converter Direct Fit...

A$3,892.81
Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.
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Description

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 4451419. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This direct-fit catalytic converter is designed to fit the 1999-2003 Chevrolet Silverado 1500, 1999-2003 GMC Sierra 1500, and additional vehicles. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.

Product Overview

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 4451419. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This direct-fit catalytic converter is designed to fit the 1999-2003 Chevrolet Silverado 1500, 1999-2003 GMC Sierra 1500, and additional vehicles. The included gaskets & hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.


Features and Benefits

  • Expertly Crafted To Replicate OEM Like Flow Dynamics; Maintaining Factory Performance And Fuel Efficiency
  • Torca AccuSeal® Exhaust Clamps provide a full 360-degree equally distributed clamping force preventing pipe distortion while creating a complete seal and maintaining serviceability
  • Simplifies Installation w/Essential Gaskets And Hardware Being Included In The Box
  • Your Trusted Source For CARB-Compliant Catalytic Converters; Providing Assurance Of Genuine Compliance
  • Precision Stamped Collector Design For Optimal Exhaust Flow; Engine Efficiency And Fuel Economy
  • Mandrel Bent Tubing Retains OEM-Like Design And Geometry; Ensuring Smooth Exhaust Flow For Peak Fuel Economy Operation
  • Torca AccuSeal® Exhaust Clamps Provide A Full 360-Degree Equally Distributed Clamping Force Preventing Pipe Distortion
  • High Strength 16 Gauge 409 Stainless Steel Tubing For Exceptional Corrosion Resistance And Maximum Service Life
  • Durable 308 Stainless Steel MIG Welds
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • Precision stamped collector design for optimal exhaust flow, engine efficiency, and fuel economy
  • Simplifies installation with essential gaskets and hardware being included in the box

Product Details

Air Tube Adaptable:No
Air Tube Count:0
Body Material:Stainless Steel
Body Type:Spun
CARB Executive Order Number:D-193-136
California Air Resources Board (CARB) Certified:Yes
Clamp Included:Yes
Clamps Included:Yes
Converter Quantity:2
Core Substrate Material:Ceramic
Description:California Direct-Fit Catalytic Converter
Finish:Stainless Steel
Grade Type:Regular
Hangers Included:No
Heat Shield Attached:No
Heat Shield Material:None
Inlet Attachment:Bolt-On
Inlet Gasket Included:Yes
Inlet Mounting Hardware Included:No
Inlet Type:Bolt-On
Material:Stainless Steel
Mounting Hardware Included:Yes
Outlet Gasket Included:No
Outlet Mounting Hardware Included:No
Outlet Type:Bolt-On
Overall Length:38
Oxygen Sensor Location:Pre and Post Converter
Part Number:mag4451419
Pipe Material:Stainless Steel
Prop 65 Y/N:No
Sensor Port Count:4
Series:California
Substrate Material:Ceramic
Subtitle:CARB Compliant Direct-Fit Catalytic Converter
Subtitles:California / CARB Compliant
Title:MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 4451419
Tube Material:Stainless Steel
Type:Direct-Fit
Universal Or Specific Fit:Specific
WARNING CA Proposition 65:No

Part Type

Catalytic Converters

Data: v4.2 - Upd: 2026-10-16 20:11:06

Features

  • Durable 308 stainless steel MIG welds
  • Expertly Crafted To Replicate OEM Like Flow Dynamics; Maintaining Factory Performance And Fuel Efficiency
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • High Strength 16 Gauge 409 Stainless Steel Tubing For Exceptional Corrosion Resistance And Maximum Service Life
  • Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
  • Mandrel Bent Tubing Retains OEM-Like Design And Geometry; Ensuring Smooth Exhaust Flow For Peak Fuel Economy Operation
  • OE-sized barbed exhaust hangers made from corrosion-resistant 410 stainless steel, designed to reduce noise and vibration
  • Precision Stamped Collector Design For Optimal Exhaust Flow; Engine Efficiency And Fuel Economy
  • Simplifies Installation w/Essential Gaskets And Hardware Being Included In The Box
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Torca AccuSeal® Exhaust Clamps Provide A Full 360-Degree Equally Distributed Clamping Force Preventing Pipe Distortion
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • Your Trusted Source For CARB-Compliant Catalytic Converters; Providing Assurance Of Genuine Compliance

Specifications

Product Attributes - Brand
MagnaFlow
Product Attributes - Manufacturer's Part Number
4451419
Product Attributes - Part Type
Catalytic Converters
Product Attributes - Product Line
MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converters
Product Attributes - UPC
888563104157
Product Attributes - Inlet Quantity
2
Product Attributes - Converter Inlet Attachment
Stock flange
Product Attributes - Outlet Quantity
1
Product Attributes - Converter Outlet Attachment
Stock flange
Product Attributes - Converter Case Material
Stainless steel
Product Attributes - Converter Substrate Material
Ceramic substrate
Product Attributes - Converter Style
3-way
Product Attributes - Remanufactured
No
Product Attributes - AIR Tube
No
Product Attributes - Heat Shield
No
Product Attributes - Quantity
Sold individually.
Product Attributes - CARB EO Number(s)
D-193-136
Product Attributes - Emissions
California EO Approved

Reference Information

Brand Name/s Magnaflow
StreetFX SKU mag4451419
SFX Item ID 4286985
Supplier Item Code 4286985
Manufacturer SKU 4451419
Manufacturer UPC 888563104157
Alternative References mpe-4451419, MFL4451419, 4.8L

Brochures

Compatibility

Application Data
  • UniversalNo
    MakeCHEVROLET
    ModelEXPRESS 1500
    SubmodelBASE
    Beginning Year2005
    Ending Year2005
    Engine TypeV8
    Liter5.3
    CID325
    CC5328
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.3L/325
    DrivetrainAWD
    Catalytic Converter PositionCatalytic Converter
    Engine VIN CodeT
  • UniversalNo
    MakeCHEVROLET
    ModelEXPRESS 1500
    SubmodelBASE
    Beginning Year2005
    Ending Year2005
    Engine TypeV8
    Liter5.3
    CID325
    CC5328
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.3L/325
    DrivetrainRWD
    Catalytic Converter PositionCatalytic Converter
    Engine VIN CodeT
  • UniversalNo
    MakeCHEVROLET
    ModelEXPRESS 1500
    SubmodelLS
    Beginning Year2005
    Ending Year2005
    Engine TypeV8
    Liter5.3
    CID325
    CC5328
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.3L/325
    DrivetrainAWD
    Catalytic Converter PositionCatalytic Converter
    Engine VIN CodeT
  • UniversalNo
    MakeCHEVROLET
    ModelEXPRESS 1500
    SubmodelLS
    Beginning Year2005
    Ending Year2005
    Engine TypeV8
    Liter5.3
    CID325
    CC5328
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.3L/325
    DrivetrainRWD
    Catalytic Converter PositionCatalytic Converter
    Engine VIN CodeT
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 1500
    SubmodelBASE
    Beginning Year1999
    Ending Year2001
    Engine TypeV6
    Liter4.3
    CID262
    Engine FamilyGM V6
    Engine Size4.3L/262
    Drivetrain4WD
    Catalytic Converter PositionCatalytic Converter
    Engine VIN CodeW
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 1500
    SubmodelBASE
    Beginning Year1999
    Ending Year2001
    Engine TypeV6
    Liter4.3
    CID262
    Engine FamilyGM V6
    Engine Size4.3L/262
    DrivetrainRWD
    Catalytic Converter PositionCatalytic Converter
    Engine VIN CodeW
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 1500
    SubmodelBASE
    Beginning Year1999
    Ending Year2001
    Engine TypeV8
    Liter4.8
    CID294
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size4.8L/294
    Drivetrain4WD
    Catalytic Converter PositionCatalytic Converter
    Engine VIN CodeV
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 1500
    SubmodelBASE
    Beginning Year1999
    Ending Year2001
    Engine TypeV8
    Liter4.8
    CID294
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size4.8L/294
    DrivetrainRWD
    Catalytic Converter PositionCatalytic Converter
    Engine VIN CodeV
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 1500
    SubmodelBASE
    Beginning Year1999
    Ending Year2001
    Engine TypeV8
    Liter5.3
    CID325
    CC5328
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.3L/325
    Drivetrain4WD
    Catalytic Converter PositionCatalytic Converter
    Engine VIN CodeT
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 1500
    SubmodelBASE
    Beginning Year1999
    Ending Year2001
    Engine TypeV8
    Liter5.3
    CID325
    CC5328
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.3L/325
    DrivetrainRWD
    Catalytic Converter PositionCatalytic Converter
    Engine VIN CodeT
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 1500
    SubmodelBASE
    Beginning Year2003
    Ending Year2003
    Engine TypeV6
    Liter4.3
    CID262
    Engine FamilyGM V6
    Engine Size4.3L/262
    Drivetrain4WD
    Catalytic Converter PositionCatalytic Converter
    Engine VIN CodeX
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 1500
    SubmodelBASE
    Beginning Year2003
    Ending Year2003
    Engine TypeV6
    Liter4.3
    CID262
    Engine FamilyGM V6
    Engine Size4.3L/262
    DrivetrainRWD
    Catalytic Converter PositionCatalytic Converter
    Engine VIN CodeX
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 1500
    SubmodelBASE
    Beginning Year2003
    Ending Year2003
    Engine TypeV8
    Liter4.8
    CID294
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size4.8L/294
    Drivetrain4WD
    Catalytic Converter PositionCatalytic Converter
    Engine VIN CodeV
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 1500
    SubmodelBASE
    Beginning Year2003
    Ending Year2003
    Engine TypeV8
    Liter4.8
    CID294
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size4.8L/294
    DrivetrainRWD
    Catalytic Converter PositionCatalytic Converter
    Engine VIN CodeV
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 1500
    SubmodelBASE
    Beginning Year2003
    Ending Year2003
    Engine TypeV8
    Liter5.3
    CID325
    CC5328
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.3L/325
    Drivetrain4WD
    Catalytic Converter PositionCatalytic Converter
    Engine VIN CodeZ
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 1500
    SubmodelBASE
    Beginning Year2003
    Ending Year2003
    Engine TypeV8
    Liter5.3
    CID325
    CC5328
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.3L/325
    Drivetrain4WD
    Catalytic Converter PositionCatalytic Converter
    Engine VIN CodeT
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 1500
    SubmodelBASE
    Beginning Year2003
    Ending Year2003
    Engine TypeV8
    Liter5.3
    CID325
    CC5328
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.3L/325
    DrivetrainRWD
    Catalytic Converter PositionCatalytic Converter
    Engine VIN CodeZ
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 1500
    SubmodelBASE
    Beginning Year2003
    Ending Year2003
    Engine TypeV8
    Liter5.3
    CID325
    CC5328
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.3L/325
    DrivetrainRWD
    Catalytic Converter PositionCatalytic Converter
    Engine VIN CodeT
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 1500
    SubmodelLS
    Beginning Year1999
    Ending Year2001
    Engine TypeV6
    Liter4.3
    CID262
    Engine FamilyGM V6
    Engine Size4.3L/262
    Drivetrain4WD
    Catalytic Converter PositionCatalytic Converter
    Engine VIN CodeW
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 1500
    SubmodelLS
    Beginning Year1999
    Ending Year2001
    Engine TypeV6
    Liter4.3
    CID262
    Engine FamilyGM V6
    Engine Size4.3L/262
    DrivetrainRWD
    Catalytic Converter PositionCatalytic Converter
    Engine VIN CodeW
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 1500
    SubmodelLS
    Beginning Year1999
    Ending Year2001
    Engine TypeV8
    Liter4.8
    CID294
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size4.8L/294
    Drivetrain4WD
    Catalytic Converter PositionCatalytic Converter
    Engine VIN CodeV
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 1500
    SubmodelLS
    Beginning Year1999
    Ending Year2001
    Engine TypeV8
    Liter4.8
    CID294
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size4.8L/294
    DrivetrainRWD
    Catalytic Converter PositionCatalytic Converter
    Engine VIN CodeV
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 1500
    SubmodelLS
    Beginning Year1999
    Ending Year2001
    Engine TypeV8
    Liter5.3
    CID325
    CC5328
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.3L/325
    Drivetrain4WD
    Catalytic Converter PositionCatalytic Converter
    Engine VIN CodeT
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 1500
    SubmodelLS
    Beginning Year1999
    Ending Year2001
    Engine TypeV8
    Liter5.3
    CID325
    CC5328
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.3L/325
    DrivetrainRWD
    Catalytic Converter PositionCatalytic Converter
    Engine VIN CodeT
  • UniversalNo
    MakeCHEVROLET
    ModelSILVERADO 1500
    SubmodelLS
    Beginning Year2003
    Ending Year2003
    Engine TypeV6
    Liter4.3
    CID262
    Engine FamilyGM V6
    Engine Size4.3L/262
    Drivetrain4WD
    Catalytic Converter PositionCatalytic Converter
    Engine VIN CodeX

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