Catalytic Converter for Mitsubishi Outlander (2010-2015) 2.4L

Direct-Fit Catalytic Converter for 2010-2015 Mitsubishi Outlander

Direct-fit replacement: Restores factory exhaust flow velocity and eliminates P0420 catalyst efficiency codes on high-mileage 2.4L platforms.

The Stock Outlander Catalytic Degradation

Over extended thermal cycles, the OEM ceramic substrate inside the Outlander 4B12 exhaust assembly suffers washcoat sintering and cell fracture. Unburned hydrocarbons and fluctuating fuel trims degrade the precious metal washcoat, causing exhaust choke and elevated backpressure. This bottleneck directly impairs volumetric efficiency, stifles low-end torque, triggers downstream oxygen sensor check-engine lights, and leads to immediate emissions inspection failures.

The Engineering Solution

Constructed from high-grade 409 stainless steel, this rear converter assembly provides superior resistance to road salt corrosion and severe thermal shock. The internal high-flow ceramic monolith features uniform cell density with an engineered precious metal loading that maximizes catalytic conversion of CO, HC, and NOx without restricting flow. Heavy-duty, laser-cut flanges match factory downpipe and mid-pipe configurations exactly, ensuring a tight seal with the included hardware and eliminating exhaust gas leaks.

Technical Specifications

Compatibility

• 2010-2015 Mitsubishi Outlander 2.4L I4 (ES, SE trims)
• Mounting Location: Rear Exhaust Underbody Position
• OE / Interchange References: 10H47095, BER509325
• Direct replacement bolt-on design; includes mounting hardware

The Mitsubishi Reliability Standard

Engineered to withstand heavy daily commutes and harsh winter conditions, this JDM-spec emissions replacement maintains proper exhaust scavenging required for smooth MIVEC variable valve operation, consistent throttle response, and leak-free reliability.