HIGH-INTENSITY KICKBOXING AND INTERVAL TRAINING. If you want to get amazing results—and have crazy fun doing it—then you'll love TurboFire®, Chalene Johnson's intense 90-day cardio program. TurboFire combines motivating music with athletic kickboxing moves that will awaken your inner athlete and help you burn up to 9x more fat and calories than with traditional cardio, so you can finally shed those extra pounds.