Reman. A-1 CARDONE Mass Air Flow Sensor 100% computerized testing of motor, throttle position sensor and articulation ensures reliable and consistent performance.Each unit is disassembled and meticulously inspected. Every component is inspected, remanufactured or replaced ensuring a durable, high-quality product.Specialized component cleaning process prevents the throttle bore surface from being deformed and ensures optimum airflow. This item has a core, the core cost of $30.00 has been added to the total price for this item.