This HELLA Mass Air Flow (MAF) Sensor, part number 8ET 009 149-611, is engineered to accurately measure the amount of air entering your engine's intake manifold. By providing critical data to the engine control unit (ECU), this sensor plays a vital role in optimizing the air-fuel mixture. This leads to improved combustion, enhanced engine performance, and better fuel economy. HELLA is a trusted name in automotive components, known for its commitment to quality and reliability. This MAF sensor is designed to meet or exceed original equipment specifications, ensuring a proper fit and function for your vehicle.