There are a lot of what would normally be heli type gyros used in surface and they do work - anything from a cheap esky $20 to a Futaba 401 gyro. Opinion is that running a gyro in a drift car is cheating they are so effective.

It may be an ok way to learn, but if you want to really drift the car, you need to learn to run without it. Believe I saw where they are illegal in any kind of drift competition.