Free up excessive engine rotational drag by removing the balance shaft assembly from your 2.0L 2.3L and 2.5L Duratec / MZR engine with the Massive Balance Shaft Delete Kit. The heavy balance shaft assembly (APPROX 19 LBS!!!) can be easily removed allowing your engine to respond faster. There are no adverse effects caused by removing the balance shafts. Includes all necessary components to block the oil feed to the balance shaft assembly. Adds REAL horsepower and allows engine to rev FASTER!!! Install can be completed with basic hand tools in about an hour. Includes full color photographic install instructions. REGULAR non direct injected 2.0's and Ranger 2.3's do not have balance shafts from the factory, so this would not work for those applications.