This is a used  Vane Airflow meter for the 2.3 Turbocharged engine found in the 84-86 Mustang SVO and 87-88 Thunderbird Turbo coupe. This particular unit was removed from a running 1986 Mustang SVO (wrecked car). This is the large meter found in these cars and a great upgrade for other 2.3 Turbo Fords that were equipped with the small Vane Meter.