Toyota Supra MK4 Stage 2 Dyno Results. Before: 200kW / 284Nm. After: 451kW / 692Nm. Setup: Haltech ECU, E85 Fuel, 2WD. Upgrades: GT47 Turbo, Camtech #272 Cams, Intake, Exhaust, Down Pipe, Intercooler, Fuel System, Ignition, and Engine Components.