The Genuine Porsche Oxygen Sensor - 99660613802 is a high-quality, original equipment manufacturer (OEM) part designed specifically for Porsche vehicles. This oxygen sensor is responsible for monitoring the amount of oxygen in the exhaust system and relaying this information to the engine control unit. It helps to ensure optimal fuel efficiency and reduce emissions. This sensor is compatible with Porsche 996 models and has a part number of 99660613802. It is a crucial component for maintaining the performance and efficiency of your Porsche vehicle.