MagnaFlow 444043 Catalytic Converter

California OBDII Direct-Fit Converter

MagnaFlow 444043 is a California Grade, CARB-compliant direct-fit catalytic converter built for specific Subaru applications. It is designed to help keep the check engine light off while restoring proper exhaust flow and emissions control on the listed Subaru Forester and Subaru Impreza models.

Part of the MagnaFlow Direct-Fit CALIFORNIA OBDII CONVERTERS line, this converter is engineered for vehicle-specific fitment and legal use in California and other CARB-restricted states on the applications shown below.

Key Features

• Direct-fit design for specific Subaru Forester and Subaru Impreza applications
• CARB-compliant California Grade construction for listed vehicles
• Stainless steel body and tubing for corrosion resistance
• Ceramic substrate for emissions conversion
• Mandrel-bent tubing to reduce flow restriction
• Bolt-on inlet and outlet for straightforward installation
• Heat shield attached for added thermal protection
• Inlet gasket included to help support a secure seal
• Hangers included for OE-style mounting
• Oxygen sensor locations: pre and post converter

Detailed Description

MagnaFlow 444043 is a direct-fit catalytic converter engineered using 3D scanning to match original equipment fit and function. It is designed for 2000-2005 Subaru Forester and 1999-2005 Subaru Impreza applications, with OE interchange references including 44139FA010 and 44139FA161. The stainless steel construction, bolt-on connections, and included gasket help simplify replacement while supporting a cleaner, OE-style installation on Subaru Forester and Subaru Impreza exhaust systems.

This part cross-references OE numbers 44139FA010 and 44139FA161 for the same application.

What It Helps Fix

• Check engine light concerns related to catalytic converter efficiency
• Failed emissions testing on the listed Subaru applications
• Restricted exhaust flow caused by a worn or damaged converter
• Corrosion-related exhaust leaks at the converter assembly
• Fitment issues from using a non-specific replacement part

Installation Notes and Tips

• Fits 2005 Subaru Forester, N/A
• Fits 2005 Subaru Impreza, N/A
• Fits 2004 Subaru Forester, N/A
• Fits 2004 Subaru Impreza, N/A
• Fits 2003 Subaru Forester, N/A
• Fits 2003 Subaru Impreza, N/A
• Fits 2002 Subaru Forester, N/A
• Fits 2002 Subaru Impreza, N/A
• Fits 2001 Subaru Forester, N/A
• Fits 2001 Subaru Impreza, N/A
• Fits 2000 Subaru Forester, N/A
• Fits 2000 Subaru Impreza, N/A
• Fits 1999 Subaru Impreza, N/A

Verify engine family and certification details before installation, since fitment is tied to the listed Subaru Forester and Subaru Impreza configurations. No cutting or welding is required when installing with the proper tools.

Quality Assurance

MagnaFlow uses 3D scanning in the design process to help the part fit and function like the original equipment. This converter is built to meet or exceed California Air Resources Board requirements and has undergone additional testing for CARB compliance on the listed vehicles.