MagnaFlow 452992 Catalytic Converter - Front

California OBDII Direct-Fit Converter

MagnaFlow 452992 is a California Grade, CARB-compliant direct-fit catalytic converter for the front position on select 1999-2005 Mazda Miata models. It is built for bolt-on replacement, with stainless steel construction and a spun-body design that follows the original equipment layout for a cleaner install and proper exhaust sealing.

Part of MagnaFlow’s Direct-Fit CALIFORNIA OBDII CONVERTERS line, this converter is engineered for vehicles that require CARB-compliant emissions equipment. The line focuses on OE-style fitment, direct replacement geometry, and application-specific design for California and CARB-restricted states.

Key Features

• Direct-fit catalytic converter for the front exhaust position
• Fits 1999-2005 Mazda Miata applications listed below
• CARB-compliant California Grade replacement for regulated emissions use
• Stainless steel body and tubing for corrosion resistance
• Ceramic substrate construction
• Bolt-on inlet and outlet for straightforward replacement
• OE-style spun body design with laser fusion weld construction
• Includes gaskets for proper exhaust sealing
• Interchanges with OE part BP4Y-20-500C

Fitment Details

• Fits 2005 Mazda Miata, front — Certification Level: LEV1 LEV; CARB Executive Order D-193-124; Engine Family Number 5TKXV01.8NA1
• Fits 2004 Mazda Miata, front — Certification Level: LEV1 LEV; CARB Executive Order D-193-124; Engine Family Number 4TKXV01.8AJA
• Fits 2003 Mazda Miata, front — Certification Level: LEV1 LEV; CARB Executive Order D-193-124; Engine Family Number 3TKXV01.8CJA
• Fits 2002 Mazda Miata, front — Certification Level: LEV1 LEV; CARB Executive Order D-193-124; Engine Family Number 2TKXV01.8CJA
• Fits 2001 Mazda Miata, front — Certification Level: LEV1 LEV; CARB Executive Order D-193-124; Engine Family Number 1TKXV01.8CJA
• Fits 2000 Mazda Miata, front — Certification Level: LEV1 LEV; CARB Executive Order D-193-124; Engine Family Number YTKXV01.8VFN
• Fits 1999 Mazda Miata, front — Certification Level: TLEV; CARB Executive Order D-193-124; Engine Family Number XTKXV01.8VDM

What It Helps Address

• Check engine light concerns related to a failed front catalytic converter
• Exhaust leaks at the converter connection points
• Corrosion-related replacement needs in the exhaust system
• Emissions inspection failures tied to a worn converter
• Fitment issues from using a non-direct replacement part

Installation Notes

This MagnaFlow 452992 converter is designed for direct replacement on the specified Mazda Miata applications and uses bolt-on connections, so no cutting or welding is required when installed with the proper tools. Use the included gaskets to help achieve a proper seal and reduce the chance of exhaust leaks. Confirm the vehicle’s emissions certification details and OE reference BP4Y-20-500C before installation.

Quality Assurance

MagnaFlow uses 3D scanning during development to match OE fit and function, and this converter is built to meet or exceed California Air Resources Board requirements for the listed vehicles. It has also undergone additional testing for CARB compliance in California and other CARB-restricted states.