what do professional drifters use to lower their cars?
lowering springs or coil-over suspensions?

 

Check out drifting.com it looks like they use coilovers.

 

Yeah, you will see more cars with adjustable shocks and coil overs or the computer controlled tein struts because you want them to adjust based on the area your going to be drifting in, even though unless its on street, most tracks dont do drifting and those that do are somewhat limited. Theres a show on G4 called forumla drift, it was interesting to watch...... and i want those damn remote control cars that they use for drifting! those are sweet

 

yea, i saw those, but its like 500 bucks just for one of those
and even more if you fix it up
lol