these are not single turbo engines. There are 2 different types of engines for supras: a naturally aspirated 2JZ-GE producing 220 hp at 5800 rpm and 210 ft·lb at 4800 rpm of torque and a twin turbocharged 2JZ-GTE making 276 hp. If you are looking to supped it up, stick with the non-turbo engine since it is more convenient to work with and is powerful enough by itself.