Will this catalytic converter keep my check engine light off?

Yes, this Magnaflow catalytic converter is designed to meet or exceed California Air Resource Board (CARB) requirements. This helps ensure your vehicle's emissions system functions correctly, which should keep the check engine light off if it was related to converter performance.

Do I need to cut or weld to install this converter?

No, this is a direct-fit catalytic converter. With the proper tools, installation should be straightforward without the need for cutting or welding.

What materials is this catalytic converter made from?

The tubing is made from high-strength 16-gauge 409 stainless steel for corrosion resistance, and it features durable 308 stainless steel MIG welds. The hangers are also made from corrosion-resistant 410 stainless steel.

2003-2004 Ford Expedition Catalytic Converter | Magnaflow

Name: MagnaFlow Conv DF 03-04 Exped Passenger Side 4.6L
Brand: Magnaflow
Price: 1532.00 USD
Availability: InStock

MagnaFlow Conv DF 03-04 Exped Passenger Side 4.6L

$1532.00

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 2003-2004 Ford Expedition. Magnaflow passenger side direct-fit catalytic converter helps keep the check engine light off.

Key Features

Fits 2003-2004 Ford Expedition.
This is the passenger side converter for the 4.6L engine.
CARB compliant for legal use in California and other restricted states.
Mandrel-bent tubing eliminates flow restrictions for improved exhaust flow.
Constructed from durable 410 and 308 stainless steel for excellent corrosion resistance.
Direct-fit design means no cutting or welding is required for installation.

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Fits this vehicle

Ford Expedition 2003-2004

Product Details

If your 2003 or 2004 Ford Expedition with the 4.6L engine is showing a check engine light related to emissions, it might be time to replace the catalytic converter. This direct-fit converter from Magnaflow is designed to meet California Air Resource Board (CARB) requirements, making it legal for use in California and other states with strict emissions standards. It's built to keep that check engine light off and ensure your vehicle passes emissions testing.

Magnaflow uses advanced 3D scanning during their research and development to make sure this converter fits and functions just like the original equipment. The tubing is mandrel-bent to maintain smooth exhaust flow, which helps with fuel economy. It's constructed from high-strength 410 and 308 stainless steel for excellent corrosion resistance and durability, meaning it's built to last. The single laser fusion weld is designed to prevent leaks, and its compact, low-mass design helps with thermal efficiency. Because it's a direct-fit unit, installation is straightforward, with no cutting or welding needed if you have the proper tools.

This converter is designed to replace OE parts like 2L1Z-5E212-AB and 4L1Z-5E212-AB. It's a well-built option for restoring your Expedition's emissions system performance and compliance.