Catalytic Converter for Mitsubishi Outlander (2003-2006) 2.4L

Direct-Fit Catalytic Converter for 2003-2006 Mitsubishi Outlander (CU)

What it Does: The Direct-Fit Catalytic Converter replaces degraded emissions hardware on the 2003-2006 Outlander to clear P0420/P0430 diagnostic trouble codes and restore factory exhaust flow dynamics.

The Stock Mitsubishi Outlander Catalyst Degradation

Over extended mileage, the factory catalytic converter on the CU generation Outlander suffers from thermal fatigue and washcoat depletion. Prolonged heat cycles cause the OEM ceramic brick to fracture, resulting in loose internal substrate rattling, restricted exhaust backpressure, and diminished conversion efficiency that triggers persistent P0420 and P0430 trouble codes across the downstream oxygen sensor loop.

The Engineering Solution

Engineered as a bolt-on replacement, this unit features a heavy-gauge 409 stainless steel housing designed to resist thermal shock and external corrosion. Inside, a high-efficiency ceramic honeycomb monolith is coated with an optimized precious-metal washcoat to chemically neutralize HC, CO, and NOx gases. Precision-stamped factory-profile flanges, integrated O2 sensor bungs, and welded OE-style hanger brackets eliminate the need for cutting, torching, or custom welding during assembly.

What's Included

• 1 x Direct-Fit Catalytic Converter
• Exhaust Flange Gasket(s)
• Mounting Hardware

Technical Specifications

Compatibility

• 2003 Mitsubishi Outlander 2.4L L4 (4G64 SOHC)
• 2004 Mitsubishi Outlander 2.4L L4 (4G69 MIVEC)
• 2005 Mitsubishi Outlander 2.4L L4 (4G69 MIVEC)
• 2006 Mitsubishi Outlander 2.4L L4 (4G69 MIVEC)

Frequently Asked Questions & Fitment Warnings

Does this fit the CU Outlander?

Yes, this is a direct fit for the 2003-2006 Mitsubishi Outlander equipped with the 4G64 and 4G69 2.4L engines. This is an EPA-compliant 49-state part and is not legal for sale, purchase, or installation in California or CARB-adopting states.

Will I need to replace my original oxygen sensors?

You can reuse your functional factory O2 sensors via the integrated threaded sensor bungs, though sensors themselves are not included.

The Mitsubishi Performance Caliber

Maintain the responsive throttle characteristics and clean exhaust delivery of your CU platform Outlander without restrictive backpressure or recurring emissions warnings on the road.