MagnaFlow 5571168 Catalytic Converter

California OBDII Direct-Fit Converter

MagnaFlow 5571168 is a California Grade, CARB-compliant direct-fit catalytic converter built for the 2006-2009 Lexus IS250 and 2006-2013 Lexus IS350. It is engineered to replace the original exhaust component with a bolt-on design that helps keep the check engine light off while maintaining OE-style fit and function.

Built with stainless steel tubing and a ceramic substrate, this MagnaFlow California OBDII converter uses a spun-body design, mandrel-bent tubing, and a single laser fusion weld to support leak resistance and thermal efficiency. MagnaFlow 5571168 is a direct replacement for OE part numbers 17410-31G50 and 17410-31J30.

Key Features

• Direct-fit catalytic converter for specific Lexus applications
• CARB-compliant California Grade design for legal use in California and CARB-restricted states on listed vehicles
• Stainless steel body and tubing for corrosion resistance
• Ceramic substrate with OE-style spun body construction
• Bolt-on inlet and outlet for straightforward replacement
• Pre-converter oxygen sensor location
• Mounting hardware included
• Interchanges with OE part numbers 17410-31G50 and 17410-31J30

Product Details

This MagnaFlow Direct-Fit California OBDII Converter line is built around OE-style packaging and fitment verification. MagnaFlow uses 3D scanning during development to match factory dimensions, helping the converter install in the original location without cutting or welding. The compact, low-mass body design supports faster heat management, while the stainless steel construction is selected for long-term durability in exhaust service.

Fits 2006 Lexus IS250, N/A; Fits 2007 Lexus IS250, N/A; Fits 2008 Lexus IS250, N/A; Fits 2009 Lexus IS250, N/A; Fits 2006 Lexus IS350, N/A; Fits 2007 Lexus IS350, N/A; Fits 2008 Lexus IS350, N/A; Fits 2009 Lexus IS350, N/A; Fits 2010 Lexus IS350, N/A; Fits 2011 Lexus IS350, N/A; Fits 2012 Lexus IS350, N/A; Fits 2013 Lexus IS350, N/A.

Common Repair Uses

• Check engine light caused by catalytic converter efficiency faults
• Failed emissions inspection on a California-spec Lexus IS250 or Lexus IS350
• Corroded or damaged factory converter housing
• Exhaust leaks at the converter body or weld area
• Replacement of an aging OE converter with a direct-fit unit

Installation Notes

Install with the proper tools and follow the vehicle-specific service procedure. This is a bolt-on replacement, so no cutting or welding is required for the listed applications. Verify sensor placement, flange alignment, and exhaust sealing surfaces before final tightening. This part is designed for the listed Lexus IS250 and Lexus IS350 fitments only.

Quality Assurance

MagnaFlow 5571168 is built to meet or exceed California Air Resources Board requirements and has undergone additional testing for CARB guideline compliance on the listed vehicles. The California OBDII converter line is developed to match OE fitment and function for emissions-related replacement service.