coilovers or dont waste your money on lowering springs or anything like that, coilovers or nothing.
and in my opinion welded diff is the best way to go. its always locked up so its WAY more predictable and easier to control.
im drifitng with a stock everything with, ksport coilovers, a welded diff, and a corbeu seat.
i started on higher hp cars and i regret it. its so much more fun and more challenging on the ka. now i can do so much better stuff whenever i get an sr or ls