Here is one of ECU-Shops plug and play options for the 1KD equiped Hiluxs.
This unit intercepts the injector harness and works by extending the injection duration only. Its excellent for torque gains around 2000RPM, as at this point we have lots of time, and therefore lots of potential with duration. To understand more about how this works, check these videos:
If you’re looking for more absolute power and not so much torque, than a Junior smart PNP Cube is the best option as it controls both boost and Rail pressure.