Sorry what car is it?

You dont neccessarily need the D-box, to be honest with you its useless and also a waste of money. Drifting comes with skill not a computer. Its actually just a rebadged futaba gyro with a bigger pricetag.

Try drifting without it first, its really not that hard to learn how to drift corners. If ur still very very crap at it, then consider buying it.

If your going to use drift radials/rubbers instead of ABS, you might wanna use a 17turn motor or so.