MagnaFlow 4561333 Catalytic Converter

California OBDII Direct-Fit Converter

MagnaFlow 4561333 is a California Grade CARB-compliant direct-fit catalytic converter built for specific Buick and Pontiac applications. It uses stainless steel construction, mandrel-bent tubing, and an OE-style spun body design to support proper exhaust flow and a factory-style fit.

Compatible With 2000-2003 Buick LeSabre, 2000-2005 Buick Park Avenue, and select Pontiac Bonneville applications, this MagnaFlow California OBDII converter is engineered for legal use in California and other CARB-restricted states on the listed vehicles.

Direct-Fit MagnaFlow CALIFORNIA OBDII Line

The MagnaFlow Direct-Fit CALIFORNIA OBDII CONVERTERS line focuses on emissions-compliant replacement converters that match original equipment packaging and installation points. For buyers searching for a 2000-2005 Buick Park Avenue catalytic converter or a 2000-2003 Buick LeSabre direct-fit converter, this product line is built to simplify replacement while maintaining CARB compliance for approved applications.

Key Features

• CARB-compliant replacement catalytic converter for listed California applications
• Direct-fit design with bolt-on inlet and clamp-on outlet
• Stainless steel body and tubing for corrosion resistance
• Ceramic substrate for emissions control
• OE-style spun body construction with a single laser fusion weld
• Mandrel-bent tubing for freer exhaust passage
• Gaskets included for sealing at installation
• Designed using 3D scanning and metrology-based development

Detailed Description

MagnaFlow 4561333 is a specific-fit catalytic converter designed to replace the original unit on approved Buick and Pontiac vehicles while meeting California Air Resources Board requirements. The compact, low-mass construction supports thermal efficiency, and the OE-style body shape helps the part install and function like the factory component. This makes it a practical choice for drivers needing a 2000-2003 Buick LeSabre catalytic converter, a 2000-2005 Buick Park Avenue catalytic converter, or a 2000-2005 Pontiac Bonneville catalytic converter with CARB compliance.

This part cross-references Walker 16337 and Eastern Catalytic 50333 for the same application.

Common Problems This Part Can Address

• Check engine light related to catalytic converter efficiency
• Failed emissions inspection on CARB-regulated vehicles
• Exhaust leaks at the converter connection points
• Corrosion damage to the original converter housing
• Poor fitment from non-direct replacement exhaust parts

Installation Notes

Installation is designed to be straightforward with proper tools and no cutting or welding required. Use the included gaskets to help achieve a proper seal and reduce the chance of exhaust leaks. Confirm vehicle year, make, model, and emissions certification details before installation, since fitment is limited to the listed applications.

Quality Assurance

MagnaFlow uses 3D scanning during development to verify fit and function against original equipment geometry. This converter is built to meet or exceed CARB requirements for the listed vehicles and has undergone additional testing for compliance in California and other CARB-restricted states.