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MagnaFlow Direct Fit Catalytic Converter 07-08 Hummer H3 3.7L

SKU: MAG5481353

Catalytic Converters

MAG Converter Direct Fit...

MagnaFlow Direct Fit Catalytic Converter 07-08 Hummer H3 3.7L

SKU: MAG5481353

Catalytic Converters

MAG Converter Direct Fit...

A$2,611.80
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

MagnaFlow Direct Fit Catalytic Converter 07-08 Hummer H3 3.7L

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Manifold Catalytic Converter 5481353. 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 5481353 includes (1) Flange Gasket, (1) Donut Gasket, (1) O2 Port Plug. 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.

Additional Information

Magnaflow California Manifold Catalytic Converter

Part Type

Catalytic Converter with Integrated Exhaust Manifold

Product Overview

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 5481353. 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 2007-2008 Hummer H3, 2007 Chevrolet Colorado, 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.

Additional Application Notes
• Certification Level LEV2 LEV 1.375 in. Tubing; 1.375 in. Inlet/2.5 in. Outlet; W-5 in.; L-23.375 in. Overall; Not Air Tube Kit Adaptable;CARB E.O. D-193-146
• Certification Level LEV2 LEV Certification Level : LEV2 LEV 1.375 in. Tubing; 1.375 in. Inlet/2.5 in. Outlet; W-5 in.; L-23.375 in. Overall; Not Air Tube Kit Adaptable;CARB E.O. D-193-146

These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.


Data: v2 - Desc: v4.2 - Upd: 2026-11-08 05:12:28

Data: v4.2 - Upd: 2026-11-08 04:14:06

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
  • Simplifies Installation w/Essential Gaskets And Hardware Being Included In The Box
  • Simplifies installation with essential gaskets and hardware being included in the box
  • 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

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Product Details

10982:Stainless Steel
Air Tube Adaptable:No
Air Tube Count:0
Body Height:5
Body Length:6.875 in.
Body Shape:Round
Body Type:Spun
Body Width:5.000 in.
CARB Executive Order Number:D-193-146
Catalytic Converter Air Tube Adapter:Not Air Tube Kit Adaptable
Clamp Included:No
Clamps Included:No
Converter Body Length:7.25
Converter Body Material:Stainless Steel
Converter Quantity:1
Converter Tube Material:Stainless Steel
Core Substrate Material:Ceramic
Finish:Stainless Steel
Gasket Included:Yes
Gasket Or Seal Included:Yes
Grade Type:Regular
Heat Shield Attached:No
Heat Shield Material:None
Inlet Attachment Type:Bolt-On
Inlet Attachment:Bolt-On
Inlet Diameter:1.375
Inlet Gasket Included:Yes
Inlet Inside Diameter:1.375 in.
Inlet Mounting Hardware Included:No
Inlet Quantity:5
Inlet Type:Flanged
Main Piping Diameter:1.375
Material:Stainless Steel
Mounting Hardware Included:Yes
Outlet Attachment Type:Bolt-On
Outlet Attachment:Bolt-On
Outlet Diameter:2.500 in.
Outlet Gasket Included:Yes
Outlet Mounting Hardware Included:No
Outlet Outside Diameter:2.500 in.
Outlet Quantity:1
Outlet Type:Flanged
Overall Length:23.375 in.
Oxygen Sensor Location:Pre and Post Converter
Part Number:mag5481353
Sensor Port Count:2
Substrate Material:Ceramic
Substrate:Ceramic
Subtitle:CARB Compliant Manifold Catalytic Converter
Type:One-Piece

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Magnaflow, MagnaFlow Exhaust Products, MAGNAFLOW PERF EXHAUST, Magnaflow Performance
StreetFX SKU mag5481353
SFX Item ID 4289450
Accounting SKU mag-5481353
Manufacturer SKU 5481353
Manufacturer UPC 888563155128
Alternative References 5481353, MFL5481353, MPE-5481353

Catalytic Converter, California Grade, Manifold, Direct-Fit, Stainless Steel Case, Chevy, GMC, Hummer, Isuzu, 3.7L, Each

MagnaFlow California Grade CARB Compliant direct-fit manifold catalytic converters comply with California Air Resources Board (CARB) emissions regulations, which require more precious metals and rigorous testing, plus the direct-fit means an easier bolt-on install for you.

Features include:
• Stainless steel construction
• CNC-precision robotic manufacturing
• Limited 5-year/50,000 mile warranty

Product Attributes
BrandMagnaFlow
Manufacturer's Part Number5481353
Part TypeCatalytic Converters
UPC888563155128
Inlet Quantity5
Inlet Diameter (in.)1.38 in.
Converter Inlet AttachmentStock flange
Outlet Quantity1
Outlet Diameter (in.)2.50 in.
Converter Outlet AttachmentStock flange
Converter Case MaterialStainless steel
Converter Substrate MaterialCeramic substrate
Converter Overall Length (in.)23.38
Converter Style3-way
RemanufacturedNo
AIR TubeNo
Heat ShieldNo
QuantitySold individually.
CARB EO Number(s)D-193-146

Manufacturer Attributes
Sensor Port Count 2
Overall Length 23.375
Converter Body Length 7.25
Substrate Material Ceramic
Inlet Type Flanged
Outlet Type Flanged
Clamps Included No
Heat Shield Attached No
Inlet Mounting Hardware Included No
Outlet Mounting Hardware Included No
Type One-Piece
Grade Type Regular
Converter Tube Material Stainless Steel
Converter Body Material Stainless Steel
Inlet Gasket Included Yes
Outlet Gasket Included Yes
Body Type Spun
CARB Executive Order Number D-193-146
Finish Stainless Steel
Product Class Catalytic Converter with Integrated Exhaust Manifold
Product Outline Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
Simplifies installation with essential gaskets and hardware being included in the box
Durable 308 stainless steel MIG welds
Vehicle Brief Manifold Converter

Compatibility

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