I sugest checking over at driftmission.com, those guys will give u some in depth insight on exactly what u will need for what application u want to use it with, there are alot of japanese and guys from other countrys......but to go a little into it, as was mentioned a sensored setup is very good if u are into rwd, and CS drifting, but with the plain ole 50/50 a simple castle sidewinder, or HOBBYKING setup will do, drifting also has alot to do with setup of the chassis as well, but that's another story lol, anywho I sugest a 10t 9.5t or even a 8.5..... Anything more is overkill, and anything under is just gonna be boring