Dyno Proven: Clean and simple, NUMBERS talk! Injen has put in the time and diligence to stand behind our performance data. We put in the time to test and prove that we have developed a superior kit for your Ford Mustang Ecoboost. After hours of designing and dyno testing, Injen is proud to say that the EVO9205 Evolution Air Intake system puts down numbers of up to 23 additional horsepower and 21 Ft.-lbs. of torque.