Catalytic Converter for Ford Five Hundred Freestyle (2005-2007) 3.0L

Direct-Fit Manifold Catalytic Converter for 2005-2007 Ford Five Hundred, Freestyle (D3)

What it Does: The catalytic converter replaces clogged or degraded factory units on the 2005-2007 Ford Five Hundred and Freestyle to restore exhaust flow velocity, clear P0420/P0430 DTCs, and maintain emissions compliance.

The Stock Ford Five Hundred, Freestyle Catalyst Degradation

Factory exhaust manifolds on the 3.0L Duratec 30 position the converter core directly off the cylinder heads, exposing the washcoat to continuous thermal cycling and high exhaust gas temperatures. Over time, the internal ceramic substrate suffers thermal sintering and attrition, losing precious metal surface area. This failure results in persistent diagnostic trouble codes (P0420, P0430), degraded fuel trims, restricted exhaust velocity, and internal core breakdown that chokes mid-range engine power.

The Engineering Solution

Engineered as a true bolt-on replacement for the Ford D3 platform, this manifold-style unit features heavy-gauge stainless steel tubing and durable shell construction to withstand extreme thermal expansion. Inside, a high-efficiency ceramic substrate maximizes surface area for proper hydrocarbon, CO, and NOx conversion without bottlenecking flow. Precision-machined 2-bolt flanges, welded mounting brackets, and factory-located pre- and post-catalyst oxygen sensor bungs ensure leak-free alignment with OE downpipes and cylinder head ports.

What's Included

• 1 x Manifold-Style Catalytic Converter
• Exhaust Flange Gasket
• Hardware Kit (Bolts / Clamp / Springs)

Technical Specifications

Compatibility

• 2005-2007 Ford Five Hundred (3.0L V6 Duratec 30)
• 2005-2007 Ford Freestyle (3.0L V6 Duratec 30)

Frequently Asked Questions & Fitment Warnings

Does this fit the D3 Five Hundred, Freestyle?

Yes, this is a direct fit for the 2005-2007 Ford Five Hundred and Freestyle equipped with the Duratec 30 3.0L engine. Note: This EPA-compliant 48-state converter is not legal for sale, installation, or use on vehicles registered in California, Colorado, New York, or Maine.

Is welding or cutting required for installation?

No, this unit is an engineered direct-fit replacement featuring factory-style flanges and hardware for a 100% bolt-on exhaust installation.

The Ford Passenger Vehicle Standard

Built to meet strict EPA conversion thresholds, this replacement manifold assembly restores factory exhaust scavenging and emissions compliance, keeping your high-mileage Ford passenger platform running clean and code-free.