Dyno Tuning is a process of calibrating the ECU to be able to properly adjust tuner defined parameters such as air/fuel, ignition timing, boost, throttle response, injector scaling, etc.  This is essential when adding any aftermarket parts such as an intake, exhaust system, bigger turbo, boost control solenoid, injectors, or any other aftermarket parts that will alter the factory calibration.  We use a Mustang AWD Dynamometer to measure the horsepower/torque values.