More Power. Increase the airflow in to your Pony's 5.0L engine for an improvement in throttle response and more horsepower you can feel with a SR Performance 70mm Throttle Body. Precision Crafted. This SR Performance Throttle Body is made from a permanent mold casting of 356 aluminum to produce a higher quality casting than conventional sand molds, which reduces porosity for an improved finish. Application. The SR Performance 70mm Throttle Body is a direct bolt-in replacement for all 1986 to 1993 5.0 Mustangs. A 70MM Throttle Body is a great upgrade for a stock or mildly modified 5.0 Mustang. Reuses the factory Throttle Position Sensor (TPS).