General Motors and Subaru are adding vehicles to the growing list of models being recalled by 11 automakers due to potentially exploding air bags, AP reported. The U.S. government's National Highway Traffic Safety Administration released the model information on Friday. The vehicles are equipped with air bag inflators made by Takata Corp. of Japan that can inflate with too much force, spewing shrapnel into the passenger compartment. Six people have been killed and more than 100 injured due to the problem. Last week NHTSA and the government agreed to double the number of inflators it recalled to 33.8 million. But the makes and models were not available. The increase made it the largest auto recall in U.S. history, according to the agency.