Precision Works Balance Shaft Eliminator Kit - Ecotec Cavalier Sunfire Cobalt HHRPrecision Works Balance Shaft Eliminator Kit Ecotec Cavalier Sunfire Cobalt HHR Manufactured from billet CNC blocks this balance shaft elimination kit is used to delete the shafts from the 2. 0L, 2. 2L, and 2. 4L Ecotec engines. By removing the balance shaft, it allows the engine to rev much faster and safely rev higher. Our kit is complete with two idlers and two aluminum bushings, while other kits may require you to cut the stock shafts which can be