Well you can use it on ANY turbo car to control boost in a closed loop system i.e it will moniter boost and adjust accordingly to deal with spikes etc....................in order to use ALL of the functions it also needs a TPS signal an RPM signal and a Speed signal. It will also display the inj Duty as well if you can get a signal for that.

In order to do Gear V's boost you need the TPS, RPM and Speed signal.

Not sure what the RST has signal wise and weather you can substitute some via tinkering about i have just come over from the dark side so not up on my RS stuff yet