Catalytic Converter for Mitsubishi Outlander Sport (2011-2013) 2.0L

$248.95

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Direct-Fit Replacement Catalytic Converter for 2011-2013 Mitsubishi Outlander Sport (GA2W)

What it Does: The catalytic converter replaces deteriorated factory exhaust emissions equipment on the 2011-2013 Mitsubishi Outlander Sport to eliminate catalyst efficiency diagnostic codes and re-establish proper exhaust gas scavenging.

The Stock Mitsubishi Outlander Sport Catalytic Degradation

Factory catalytic converters on the 2.0L 4B11 engine degrade over prolonged thermal cycling, leading to catalyst washcoat breakdown and micro-fracturing of the ceramic honeycomb substrate. Carbon buildup, unburnt hydrocarbons, and exhaust heat cycles eventually poison the internal noble metal layers. This catalyst breakdown leads to abnormal downstream O2 sensor readouts, illuminates check engine codes P0420 and P0430, produces a sulfur odor, and creates parasitic exhaust backpressure that dulls acceleration.

The Engineering Solution

This replacement converter features a corrosion-resistant 409 stainless steel outer casing mated to a high-efficiency ceramic substrate. Optimized washcoat loading facilitates efficient hydrocarbon and nitrogen oxide conversion, restoring closed-loop fuel management feedback. Built to OE geometric tolerances, it includes factory-matched oxygen sensor bungs and clamp-on inlet and outlet connections that mate directly to existing intermediate exhaust piping without custom bending or chassis modifications.

What's Included

1 x Direct-Fit Catalytic Converter
1 x Exhaust Gasket

Technical Specifications

Fitment	2011-2013 Mitsubishi Outlander Sport
Engine / Chassis	4B11 / GA2W
Stock Output	148 hp / 145 lb-ft
Replaces OEM Part #	155791, 18508

Compatibility

2011 Mitsubishi Outlander Sport 2.0L 4B11 (ES, SE)
2012 Mitsubishi Outlander Sport 2.0L 4B11 (ES, SE)
2013 Mitsubishi Outlander Sport 2.0L 4B11 (ES, SE)

Frequently Asked Questions & Fitment Warnings

Does this fit the GA2W Outlander Sport?

Yes, this is a direct fit for the 2011-2013 Mitsubishi Outlander Sport equipped with the 4B11 engine. Note: This EPA-standard unit cannot be sold or shipped to California, Colorado, New York, or Maine.

Is welding required during installation?

No welding is required because this direct-replacement unit utilizes clamp-on connections for straightforward mechanical installation.

The Mitsubishi Calibration Standard

Restore the clean exhaust note and responsive power delivery of your GA2W crossover by returning exhaust backpressure to factory parameters and safeguarding downstream sensor integrity.