MagnaFlow 4451402 Catalytic Converter

California OBDII Direct-Fit Converter

MagnaFlow 4451402 is a California Grade, CARB-compliant direct-fit catalytic converter for the 1999-2003 Honda Odyssey. It is built for OE-style fitment and direct replacement service, with stainless steel construction and a bolt-on inlet for straightforward installation.

Designed for the Honda Odyssey, this MagnaFlow California OBDII converter is engineered to help keep the check engine light off while matching the original exhaust layout. The spun-body design, mandrel-bent tubing, and ceramic substrate support efficient exhaust flow and thermal performance.

Key Features

• Direct-fit catalytic converter for specific 1999-2003 Honda Odyssey applications
• CARB-compliant California Grade design for listed vehicles
• Stainless steel body and tube construction for corrosion resistance
• OE-style spun body with single laser fusion weld to reduce leak points
• Compact, low-mass design for improved thermal efficiency
• Includes gaskets and hardware for installation
• Interchanges with OE part numbers 18160-P8F-305 and 18160-P8C-305

Product Details

MagnaFlow Direct-Fit California OBDII Converters are built around vehicle-specific fitment and emissions compliance. Part number 4451402 is engineered for the 1999, 2000, 2001, 2002, and 2003 Honda Odyssey and is listed for CARB Executive Order D-193-136 applications. The stainless steel body, ceramic substrate, and bolt-on inlet support a direct replacement for the original converter assembly without cutting or welding.

This part cross-references OE numbers 18160-P8F-305 and 18160-P8C-305 for the same application. It is a direct-fit catalytic converter for Honda Odyssey owners needing a California-compliant replacement that follows the factory-style exhaust configuration.

Common Problems This Part Can Address

• Check engine light related to catalytic converter efficiency
• Failed emissions inspection on listed California applications
• Corrosion damage to the original converter housing
• Exhaust leaks at worn factory connection points
• Fitment issues from using a universal replacement converter

Installation Notes

Fits 1999-2003 Honda Odyssey, N/A. Use the correct tools and follow the vehicle-specific installation procedure. No cutting or welding is required for the direct-fit design. The included gaskets and hardware help replace corroded factory fasteners and sealing components during installation.

Quality Assurance

MagnaFlow uses 3D scanning during development to match OE dimensions and function. This converter is built to meet or exceed California Air Resources Board requirements and has been tested for CARB compliance for the listed vehicles.