MagnaFlow 5571683 Catalytic Converter

California OBDII Direct-Fit Converter

MagnaFlow 5571683 is a California Grade, CARB-compliant direct-fit catalytic converter for specific Honda Accord and Acura TL applications. It is built for a bolt-on installation with no cutting or welding required, and it uses stainless steel construction with a ceramic substrate for OE-style exhaust flow and fitment.

Part of MagnaFlow’s Direct-Fit CALIFORNIA OBDII CONVERTERS line, this converter is engineered for vehicles that need a legal replacement in California and other CARB-restricted states. The design follows the original spun-body layout and uses precision 3D scanning during development to match factory dimensions and function.

Key Features

• Direct-fit catalytic converter for specific 2003-2007 Honda Accord applications and 2004-2008 Acura TL applications
• CARB-compliant California Grade replacement for regulated emissions applications
• Stainless steel body and tubing for corrosion resistance
• Ceramic substrate for emissions control performance
• Bolt-on inlet design for installation without cutting or welding
• Includes gaskets for proper sealing at the exhaust connection
• OE-style spun body construction with laser fusion weld design
• Interchanges with OE part numbers 18160-RCA-S00 and 18160-RGW-A00, among others

Fitment Details

• Fits 2004-2008 Acura TL, N/A
• Fits 2007 Honda Accord, N/A; Certification Level: LEV2 LEV; CARB Executive Order D-193-137; Engine Family Number 7HNXV03.0RKC
• Fits 2006 Honda Accord, N/A; Certification Level: LEV2 LEV; CARB Executive Order D-193-137; Engine Family Number 6HNXV03.0HKC
• Fits 2006 Honda Accord, N/A; Certification Level: LEV2 ULEV; CARB Executive Order D-193-137; Engine Family Number 6HNXV03.2NKR
• Fits 2005 Honda Accord, N/A; Certification Level: LEV2 LEV; CARB Executive Order D-193-137; Engine Family Number 5HNXV03.0TBP
• Fits 2005 Honda Accord, N/A; Certification Level: LEV2 ULEV; CARB Executive Order D-193-137; Engine Family Number 5HNXV03.24B4
• Fits 2004 Honda Accord, N/A; Certification Level: LEV2 LEV; CARB Executive Order D-193-137; Engine Family Number 4HNXV03.0FBP
• Fits 2004 Honda Accord, N/A; Certification Level: LEV2 ULEV; CARB Executive Order D-193-137; Engine Family Number 4HNXV03.0HB4
• Fits 2003 Honda Accord, N/A; Certification Level: LEV2 LEV; CARB Executive Order D-193-137; Engine Family Number 3HNXV03.0FBP

What It Helps Address

• Check engine light concerns related to a failing catalytic converter
• Exhaust leaks at the converter connection point
• Emissions compliance issues on regulated Honda Accord and Acura TL applications
• Fitment problems caused by using a universal converter instead of a direct-fit unit
• Corrosion-related replacement needs in the exhaust system

Installation Notes

Use the included gaskets to help achieve a proper seal during installation. This MagnaFlow 5571683 converter is designed as a direct replacement, so it installs with bolt-on connections and does not require cutting or welding when used on the listed vehicles. Confirm the vehicle’s emissions certification and engine family before ordering, especially for California and CARB-restricted applications.

Quality Assurance

MagnaFlow uses 3D scanning and OE-style design replication during development to help the part match original equipment dimensions and function. The single laser fusion weld and stainless steel construction are used to support durability and reduce leak potential in the exhaust system.

This part cross-references OE numbers 18160-RCA-S00 and 18160-RGW-A00 for the same application.