This HELLA Mass Air Flow (MAF) Sensor, part number 8ET 358 095-161, is engineered to accurately measure the amount of air entering your engine. Accurate air-fuel mixture is critical for optimal engine performance, fuel economy, and emissions control. The MAF sensor plays a vital role in providing the engine control unit (ECU) with the data it needs to make these adjustments. HELLA is a trusted brand known for its quality and reliability in automotive components. This sensor is designed to meet or exceed original equipment specifications, ensuring a proper fit and function.