Magnaflow 49057 Federal Catalytic Converter for 2003-2011 Crown Victoria

Vehicle Fitment

• 2003-2011 Ford Crown Victoria - Driver Side
• 2003-2011 Mercury Grand Marquis - Driver Side
• Additional Panther-platform applications may be covered - confirm your specific model against MagnaFlow's official fitment tool

Fitment Notes

• Federal/EPA compliant only - NOT CARB certified; confirm your state's emissions requirements before ordering
• Driver side position - confirm you're ordering the correct side for your specific application
• Interchanges with OEM part number 3W1Z-5E212-GB

Features

• OEM Grade construction designed to meet or exceed Federal EPA emissions requirements while keeping the Check Engine Light off
• Clamshell design with continuous seam weld for superior thermal insulation
• Stainless steel construction with mandrel-bent piping to eliminate flow restrictions
• Precisely manufactured flared receivers, OEM-like O2 port locations, and integrated butt joints for easy, accurate installation
• State-of-the-art 3D scanning during development ensures a direct, DIY-installable fit - no cutting or welding required
• Uses factory hangers for a straightforward mounting process
• Combined pre-catalytic and main catalytic converter format
• 5-Year/50,000-Mile Limited Construction and Emissions Warranty

Specifications

• Series: MagnaFlow OEM Grade
• Part Type: Catalytic Converter, Direct-Fit
• Position: Driver Side
• Body Material: Stainless Steel
• Substrate Material: Ceramic
• Overall Length: 37 in.
• Inlet/Outlet Diameter: 2.25 in.
• CARB Certified: No
• Warranty: 5-Year/50,000-Mile Limited

Included Components

• 1x Magnaflow 49057 Catalytic Converter
• 1x Flange Gasket

Product Description

The Magnaflow 49057 is an OEM Grade Federal/EPA Compliant direct-fit catalytic converter engineered for the driver side on the 2003-2011 Ford Crown Victoria and Mercury Grand Marquis. Built with a stainless steel clamshell design and continuous seam weld, this converter is designed for superior thermal insulation and long-term durability on these full-size Panther-platform sedans.

MagnaFlow's 3D scanning during development ensures OEM-like fit, with precisely manufactured flared receivers and O2 sensor port locations that match factory placement for a straightforward installation. The combined pre-catalytic and main catalytic converter format simplifies replacement, and the included flange gasket helps achieve a proper seal to avoid exhaust leaks.

This converter is a good fit for Crown Victoria and Grand Marquis owners in Federal-emissions states replacing a failed driver-side converter with an OEM-grade direct-fit solution. Because this is a Federal (not CARB) converter, confirm your state's emissions requirements before ordering, and verify your exact vehicle against MagnaFlow's official fitment tool given references to additional compatible models beyond the two explicitly named.