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MagnaFlow 04-05 Chevrolet Express 1500 5.3L Direct Fit Converter

SKU: MAG4551211

Catalytic Converters

MAG Converter Direct Fit...

MagnaFlow 04-05 Chevrolet Express 1500 5.3L Direct Fit Converter

SKU: MAG4551211

Catalytic Converters

MAG Converter Direct Fit...

A$4,250.17
Last Available from MFR. LAST ONE AVAILABLE from the manufacturer's distribution centre. Once sold, this item may not be immediately available again. The dispatch timeframe shown is an estimate based on historical orders for this part and is dependent on the manufacturer releasing the final available unit.
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Description

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 4551211. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this 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 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. MagnaFlow 4551211 includes (1) Crush Ring Gasket, (1) Donut Gasket, (2) Torca Clamps. 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 4551211. 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 2003-2005 Chevrolet Express 1500, 2003-2005 GMC Savana 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
  • OE-Sized Barbed Exhaust Hangers Made From Corrosion-Resistant 410 Stainless Steel; Designed To Reduce Noise/Vibration
  • 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
  • OE-sized barbed exhaust hangers made from corrosion-resistant 410 stainless steel, designed to reduce noise and vibration
  • 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 Height:5
Body Length:11.000 in.
Body Material:Stainless Steel
Body Shape:Round
Body Type:Spun
Body Width:5.000 in.
CARB Executive Order Number:D-193-145
California Air Resources Board (CARB) Certified:Yes
Catalytic Converter Air Tube Adapter:Not Air Tube Kit Adaptable
Clamp Included:Yes
Clamps Included:Yes
Converter Quantity:2
Core Substrate Material:Ceramic
Description:California Direct-Fit Catalytic Converter
Finish:Stainless Steel
Gasket Included:Yes
Gasket Or Seal Included:Yes
Grade Type:Regular
Hanger Included:Yes
Hangers Included:Yes
Heat Shield Attached:No
Heat Shield Material:None
Inlet Attachment Type:Bolt-On
Inlet Attachment:Bolt-On
Inlet Diameter:2.500 in.
Inlet Gasket Included:Yes
Inlet Inside Diameter:2.5
Inlet Mounting Hardware Included:No
Inlet Quantity:2
Inlet Type:Bolt-On
Main Piping Diameter:2.500 in.
Material:Stainless Steel
Mounting Hardware Included:Yes
Outlet Attachment Type:Bolt-On
Outlet Attachment:Bolt-On
Outlet Diameter:3.000 in.
Outlet Gasket Included:No
Outlet Inside Diameter:3
Outlet Mounting Hardware Included:No
Outlet Outside Diameter:2.500 in.
Outlet Quantity:1
Outlet Type:Bolt-On
Overall Length:61.500 in.
Oxygen Sensor Location:Pre and Post Converter
Part Number:mag4551211
Pipe Material:Stainless Steel
Prop 65 Y/N:No
Sensor Port Count:4
Series:California
Substrate Material:Ceramic
Substrate:Ceramic
Subtitle:CARB Compliant Direct-Fit Catalytic Converter
Subtitles:California / CARB Compliant
Title:MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 4551211
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: 2026-10-13 22:22:12

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
  • OE-Sized Barbed Exhaust Hangers Made From Corrosion-Resistant 410 Stainless Steel; Designed To Reduce Noise/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
4551211
Product Attributes - Part Type
Catalytic Converters
Product Attributes - Product Line
MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converters
Product Attributes - UPC
888563153544
Product Attributes - Inlet Quantity
2
Product Attributes - Inlet Diameter (in.)
2.50 in.
Product Attributes - Converter Inlet Attachment
Stock flange
Product Attributes - Outlet Quantity
1
Product Attributes - Outlet Diameter (in.)
3.00 in.
Product Attributes - Converter Outlet Attachment
Stock flange
Product Attributes - Converter Case Material
Stainless steel
Product Attributes - Converter Substrate Material
Ceramic substrate
Product Attributes - Converter Overall Length (in.)
61.50
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-193-145
Product Attributes - Emissions
California EO Approved

Reference Information

Brand Name/s Magnaflow
StreetFX SKU mag4551211
SFX Item ID 4289806
Supplier Item Code 4289806
Manufacturer SKU 4551211
Manufacturer UPC 888563153544
Alternative References MFL4551211, MPE-4551211, 5.3L

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