its a 4afe with i/h/e plugs, plug wires and alot more stuff, here you can check them out 
i/h/e, Simota Induction Kit, Custom made 4-2-1 headers, SARD 310cc fuel injection, old HKS Exhaust with 2.75" downpiping, HKS Voltage Regulatory Wiring (Plug Ignition and Earthing), TRD gear spice ups, had a lighter flywheel ages back but got it changed with the original one due to jerks during take off on low RPMs, Upgraded brakes (TOYOTA's original though), Steering lock changed to improve handling (complete 2.25 rounds from lock to lock)
