The DENSO Saab Subaru Air Mass Meter is a high-quality air flow sensor designed for use in Saab and Subaru vehicles. It is part number 1976040 and is manufactured by DENSO, a trusted supplier of automotive parts. This air mass meter measures the amount of air entering the engine and sends this information to the engine control unit, helping to optimize fuel delivery and improve engine performance. It is a reliable and durable component that is essential for proper engine function.