MagnaFlow 452909 Catalytic Converter - Front Left or Front Right

California OBDII Direct-Fit Converter

MagnaFlow 452909 is a California Grade, CARB-compliant direct-fit catalytic converter built for specific Lexus applications. It is engineered for a bolt-on replacement on select 2001-2006 Lexus LS430, 2002-2006 Lexus SC430, and related GS430 front positions, with no cutting or welding required.

Designed around OE-style fitment and emissions compliance, this MagnaFlow California OBDII converter uses stainless steel construction, a ceramic substrate, and mandrel-bent tubing to support proper exhaust flow and a factory-style installation. The spun-body design and single laser fusion weld help reduce leak points, while the compact low-mass layout supports thermal efficiency.

• Direct-fit catalytic converter for specific Lexus front left and front right applications
• California Grade CARB-compliant design for listed vehicles in California and CARB-restricted states
• Stainless steel body and tubing for corrosion resistance
• Ceramic substrate for emissions control performance
• Bolt-on inlet and outlet for straightforward installation
• Includes gaskets for a proper exhaust seal
• Interchanges with OE part number 18450-50350

Product Line Details

MagnaFlow’s Direct-Fit CALIFORNIA OBDII CONVERTERS line focuses on OE-style replacement converters for emissions-controlled vehicles. Part number 452909 is part of that line and is built to match the original layout and mounting style for the listed Lexus models.

Fitment Details

• Fits 2006 Lexus GS430, front left.
• Fits 2006 Lexus GS430, front right.
• Fits 2006 Lexus LS430, front left.
• Fits 2006 Lexus LS430, front right.
• Fits 2006 Lexus SC430, front left.
• Fits 2006 Lexus SC430, front right.
• Fits 2005 Lexus GS430, front left.
• Fits 2005 Lexus GS430, front right.
• Fits 2005 Lexus LS430, front left.
• Fits 2005 Lexus LS430, front right.
• Fits 2005 Lexus SC430, front left.
• Fits 2005 Lexus SC430, front right.
• Fits 2004 Lexus GS430, front left.
• Fits 2004 Lexus GS430, front right.
• Fits 2004 Lexus LS430, front left.
• Fits 2004 Lexus LS430, front right.
• Fits 2004 Lexus SC430, front left.
• Fits 2004 Lexus SC430, front right.
• Fits 2003 Lexus GS430, front left.
• Fits 2003 Lexus GS430, front right.
• Fits 2003 Lexus LS430, front left.
• Fits 2003 Lexus LS430, front right.
• Fits 2003 Lexus SC430, front left.
• Fits 2003 Lexus SC430, front right.
• Fits 2002 Lexus GS430, front left.
• Fits 2002 Lexus GS430, front right.
• Fits 2002 Lexus LS430, front left.
• Fits 2002 Lexus LS430, front right.
• Fits 2002 Lexus SC430, front left.
• Fits 2002 Lexus SC430, front right.
• Fits 2001 Lexus GS430, front left.
• Fits 2001 Lexus GS430, front right.
• Fits 2001 Lexus LS430, front left.
• Fits 2001 Lexus LS430, front right.

Common Replacement Uses

• Check engine light caused by a failed catalytic converter
• Exhaust leaks at the converter body or flange area
• Emissions test failure on a CARB-regulated Lexus application
• Corrosion-related converter deterioration
• Fitment issues from a damaged or non-OE-style replacement converter

Installation Notes

Use the proper tools and follow the vehicle-specific service procedure for a bolt-on installation. Verify the correct front left or front right position before ordering, and confirm the OE cross-reference 18450-50350 against your original part. The included gaskets should be installed to help achieve a proper seal and reduce the chance of exhaust leakage.

Quality Assurance

MagnaFlow uses 3D scanning and OE-style development methods to match original equipment fit and function. Part number 452909 is designed to meet or exceed California Air Resources Board requirements and has been tested for CARB compliance on the listed Lexus applications.