MagnaFlow 551144 Catalytic Converter - Right

California OBDII Direct-Fit Converter

MagnaFlow 551144 is a California Grade, CARB-compliant direct-fit catalytic converter built for specific Infiniti and Nissan applications. It uses stainless steel construction, a ceramic substrate, and a bolt-on design to replace the original converter without cutting or welding.

Designed for the right-side position, this converter helps maintain emissions system performance while preserving factory-style fitment on vehicles such as the Infiniti G37, G35, and Nissan 370Z.

Key Features

• Direct-fit replacement for the right-side catalytic converter
• Stainless steel body and tubing for corrosion resistance
• Ceramic substrate for emissions control
• Bolt-on inlet and outlet for straightforward installation
• Heat shield attached with aluminized steel construction
• Hangers included for OE-style mounting
• Post-converter oxygen sensor location
• CARB-compliant design for listed California and CARB-restricted applications

Product Details

MagnaFlow Direct-Fit CALIFORNIA OBDII CONVERTERS are built to match original equipment packaging and installation requirements. Part number 551144 uses mandrel-bent stainless tubing, a spun-body style, and a single laser fusion weld to reduce leak points while supporting thermal efficiency. MagnaFlow also uses 3D scanning during development to help maintain OE-style fit and function. This part cross-references no listed aftermarket part numbers for the same application.

Fits 2007-2013 Infiniti G35 and G37, right; 2007-2008 Infiniti G35, right; 2008-2013 Infiniti G37, right; 2007-2013 Nissan 350Z and 370Z, right; and additional listed Infiniti/Nissan applications including EX35, EX37, M37, Q40, Q50, Q60, Q70, Q70L, and QX50 right-side configurations.

Common Problems This Part Can Address

• Check engine light related to catalytic converter efficiency
• Failed emissions inspection on CARB-regulated vehicles
• Corroded or leaking factory converter housing
• Exhaust leaks at the converter seal or flange
• Fitment issues from damaged or non-OE-style replacement parts

Installation Notes

Install using the proper tools and follow the vehicle-specific service procedure. No cutting or welding is required for the listed applications. Included gaskets and hardware help reduce the chance of a leaking seal and eliminate the need to reuse corroded factory fasteners. Verify the vehicle’s emissions certification, engine family, and right-side application before installation.

Quality Assurance

MagnaFlow 551144 is engineered to meet or exceed California Air Resources Board requirements for the listed vehicles and has undergone additional testing for CARB guideline compliance. The direct-fit design is developed from OE-style scanning and fitment data to support consistent installation and function.