MagnaFlow Conv DF 03-04 Ford Expedition 5.4L V8 Driver Side

If your 2003 or 2004 Ford Expedition is showing a check engine light related to emissions, it might be time to replace the catalytic converter. This direct-fit unit from Magnaflow is designed specifically for the 5.4L V8 engine, making installation straightforward without the need for cutting or welding. It's built to meet federal emissions standards, helping you pass inspections and keep your truck running cleanly.

Magnaflow uses high-strength 16-gauge 409 stainless steel for the tubing, which is great for resisting corrosion and ensuring a long service life, especially in areas where road salt is common. The tubing is mandrel-bent to maintain consistent diameter, which helps ensure the exhaust flows smoothly and doesn't create backpressure that can hurt performance or fuel economy. They also use durable 308 stainless steel for the welds, which are single laser fusion welded to minimize the chance of leaks. Magnaflow's design process involves 3D scanning to ensure this converter fits and functions just like the original equipment, so you can be confident in its performance and compatibility.

This converter is designed to meet or exceed EPA requirements for OBDII federally registered vehicles. While it's designed for easy DIY installation with the proper tools, remember that it is not CARB approved and cannot be shipped to California. It's a solid option for getting your Expedition back to proper emissions standards.