Catalytic Converter for Mitsubishi Outlander (2016-2018) 2.4L Front

Direct-Fit Front Manifold Catalytic Converter for 2016-2018 Mitsubishi Outlander (GF7W)

What it Does: The front manifold catalytic converter replaces the failed primary catalytic unit on the 2016-2018 Mitsubishi Outlander 2.4L to remediate P0420 trouble codes, restore exhaust scavenging efficiency, and ensure clean tailpipe emissions.

The Stock Mitsubishi Outlander Catalyst Degradation & Manifold Thermal Fatigue

The factory integrated exhaust manifold catalytic converter on the 4J12 engine operates under high thermal stress immediately adjacent to the cylinder head exhaust ports. Over accumulated heat cycles, the factory ceramic substrate undergoes thermal sintering, washcoat degradation, and internal cell wall fracture. This thermal fatigue causes efficiency loss, persistent check engine lights (DTC P0420), and restricted exhaust flow that chokes high-RPM performance and increases exhaust gas temperatures (EGT).

The Engineering Solution

Engineered as a direct bolt-on replacement, this unit utilizes a durable stainless steel shell engineered to resist road brine corrosion and thermal cracking. Inside, a high-efficiency ceramic substrate washcoat formulation optimizes gas cross-flow and light-off temperatures to efficiently convert HC, CO, and NOx into inert emissions. Heavy-gauge laser-cut mounting flanges and pre-positioned factory O2 sensor bungs eliminate the need for cutting, welding, or custom fabrication.

What's Included

• 1x Front Manifold Catalytic Converter
• Mounting Bolts & Screws
• Flange Seal Gasket

Technical Specifications

Compatibility

• 2016 Mitsubishi Outlander 2.4L ES / SE / SEL (4J12)
• 2017 Mitsubishi Outlander 2.4L ES / SE / SEL (4J12)
• 2018 Mitsubishi Outlander 2.4L ES / SE / SEL (4J12)

Frequently Asked Questions & Fitment Warnings

Does this fit the GF7W Outlander?

Yes, this is a direct fit for the 2016-2018 Mitsubishi Outlander equipped with the 4J12 2.4L engine. Not legal for sale or use in California, New York, Colorado, or Maine emissions applications (Federal EPA standard only).

Is professional installation recommended for this manifold converter?

Yes, professional installation is recommended to guarantee proper cylinder head stud torque specs and achieve an airtight seal with the included hardware.

The Mitsubishi Reliability Standard

Engineered to restore original Japanese powertrain dynamics, this exhaust manifold converter delivers factory-matched backpressure levels and reliable tailpipe emissions compliance.