The 11-15 Nissan 370z Infiniti G37 Downstream O2 Oxygen Sensor Assembly 226A0-ET000 is a direct fit oxygen sensor designed specifically for Nissan and Infiniti vehicles. It is a downstream sensor, meaning it is located on the lower part of the vehicle's exhaust system. This OE/OEM part number 226A0-ET000 ensures compatibility and quality for seamless installation in your vehicle. The O2 brand guarantees reliability and performance, making this oxygen sensor assembly a practical choice for maintaining your vehicle's emission control system.