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MagnaFlow Converter Direct Fit 08-13 Infiniti G37 V6-3.7LGAS California Catalytic Converter 2.25 Dia

SKU: MAG551144

Catalytic Converters

MAG Converter Direct Fit...

MagnaFlow Converter Direct Fit 08-13 Infiniti G37 V6-3.7LGAS California Catalytic Converter 2.25 Dia

SKU: MAG551144

Catalytic Converters

MAG Converter Direct Fit...

A$2,790.68
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 Converter Direct Fit 08-13 Infiniti G37 V6-3.7LGAS California Catalytic Converter 2.25 Dia

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 551144. 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 2008-2013 INFINITI G37, 2007-2008 INFINITI G35, 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 Information

Magnaflow California Direct-Fit Catalytic Converter

Additional Application Notes
• 2.25 in. Main Tubing; 2.25 in. Inlet/Outlet; L-8 in.; W-4 in.; L-19 in. Overall; Not Air Tube Adaptable; Stainless;CARB E.O. D-193-133
• Certification Level : LEV2 ULEV
• Certification Level : LEV2 ULEV 2.25 in. Main Tubing; 2.25 in. Inlet/Outlet; L-8 in.; W-4 in.; L-19 in. Overall; Not Air Tube Adaptable; Stainless;CARB E.O. D-193-133
• Certification Level: LEV2 ULEV~EFN# 7NSZV03.5GAE 2.25 in. Main Tubing; 2.25 in. Inlet/Outlet; L-8 in.; W-4 in.; L-19 in. Overall; Not Air Tube Adaptable; Stainless;CARB E.O. D-193-133
• Certification Level: LEV2 ULEV~EFN# 8NSXV03.5GAB 2.25 in. Main Tubing; 2.25 in. Inlet/Outlet; L-8 in.; W-4 in.; L-19 in. Overall; Not Air Tube Adaptable; Stainless;CARB E.O. D-193-133
• Certification Level: LEV2 ULEV~EFN# 9NSXV03.5GAB 2.25 in. Main Tubing; 2.25 in. Inlet/Outlet; L-8 in.; W-4 in.; L-19 in. Overall; Not Air Tube Adaptable; Stainless;CARB E.O. D-193-133

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 05:00:26

Data: v4.2 - Upd: 2026-11-08 04:23:17

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
  • 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

Air Tube Adaptable:No
Air Tube Count:0
Body Material:Stainless Steel
Body Type:Spun
Body Width:4.000 in.
CARB Executive Order Number:D-193-133
Catalytic Converter Air Tube Adapter:Not Air Tube Kit Adaptable
Clamp Included:No
Clamps Included:No
Converter Body Size:4.000 in.
Converter Quantity:2
Core Substrate Material:Ceramic
Finish:Stainless Steel
Grade Type:Regular
Hangers Included:Yes
Heat Shield Attached:Yes
Heat Shield Included:Yes
Heat Shield Material:Aluminized Steel
Inlet Attachment Type:Bolt-On
Inlet Attachment:Bolt-On
Inlet Gasket Included:Yes
Inlet Inside Diameter:2.250 in.
Inlet Mounting Hardware Included:Yes
Inlet Type:Bolt-On
Main Piping Diameter:2.25
Material:Stainless Steel
Mounting Hardware Included:Yes
Outlet Attachment Type:Bolt-On
Outlet Attachment:Bolt-On
Outlet Gasket Included:Yes
Outlet Mounting Hardware Included:No
Outlet Outside Diameter:2.250 in.
Outlet Type:Bolt-On
Overall Length:19.000 in.
Oxygen Sensor Location:Post Converter
Part Number:mag551144
Pipe Material:Stainless Steel
Sensor Port Count:1
Substrate Material:Ceramic
Subtitle:CARB Compliant Direct-Fit Catalytic Converter
Tube Material:Stainless Steel
Type:Direct-Fit
Universal Or Specific Fit:Specific

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 mag551144
SFX Item ID 4284328
Accounting SKU mag-551144
Manufacturer SKU 551144
Manufacturer UPC 888563090818
Alternative References 551144, MFL551144, MPE-551144

Catalytic Converter

MagnaFlow direct-fit catalytic converters are designed for easy bolt-on installation for the professional installer. Welding, cutting, and tube-bending equipment are not required. These cats feature a ribbed body that minimizes expansion and distortion when the converters heat up. The ribs form a channel that protects the cushioning mat from direct exposure to exhaust gases, and they hold the ceramic catalyst in proper alignment. MagnaFlow converters use a monolithic honeycomb catalyst; the ceramic coating is designed for maximum flow and surface area, and the coating method is strictly controlled to maintain exact specifications. Improper coating could result in flow restrictions or an emissions test failure. These converters are designed to exact OE specifications and are available for the most popular vehicle makes and models.

Product Attributes
BrandMagnaFlow
Manufacturer's Part Number551144
Part TypeCatalytic Converters
Product LineMagnaFlow Direct-Fit Catalytic Converters
UPC888563090818
Inlet Diameter (in.)2.25 in.
Converter Inlet AttachmentStock flange
Outlet Diameter (in.)2.25 in.
Converter Outlet AttachmentStock flange
Converter Case MaterialStainless steel
Converter Substrate MaterialCeramic honeycomb
Converter Overall Length (in.)19.00
Converter Overall Width (in.)4.00
Converter Style3-way
RemanufacturedNo
AIR TubeNo
Heat ShieldYes
QuantitySold individually.
CARB EO Number(s)D-193-133

Manufacturer Attributes
Air Tube Count 0
Air Tube Adaptable No
Body Material Stainless Steel
Sensor Port Count 1
Overall Length 19.25
Heat Shield Material Aluminized Steel
Inlet Type Bolt-On
Outlet Type Bolt-On
Substrate Material Ceramic
Clamps Included No
Outlet Mounting Hardware Included No
Oxygen Sensor Location Post Converter
Grade Type Regular
Universal Or Specific Fit Specific
Finish Stainless Steel
Tube Material Stainless Steel
Hangers Included Yes
Heat Shield Attached Yes
Inlet Gasket Included Yes
Inlet Mounting Hardware Included Yes
Outlet Gasket Included Yes
CARB Executive Order Number D-193-133
Product Class Catalytic Converter
Product Outline 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
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 Catalytic Converter

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