well
as coilover's u have the Tein flex or the Buddy Club RSD, wich both can adjust ride height without having to take out pre-charge to the spring
then one of the most important thing's for a fine setup are these item's:
"roll center adjuster" when u lower your car u also lower the roll center, and with this it return's to where it was
and the other thing's are the j's racing tie rod's and the T1R inverted rod end's that allows u to bring the rod's back to stock angle and to be able to have more negative camber at front while having Toe out as well
and here is some example's with RSD and Flex with inverted rod end's and roll center adjuster
appart from this particular situation u have some of the more known suspension mod's as
strut tower bar's at front and back,
upgrade anti-roll bar's with jdm unit's,
camber adjustment at front and back,
front lower frame from Tanabe, Neuspeed, Carbing, D3
and the LSD is also a great option, jdm, quaife, spoon, cusco, kaaz, u have the ring's lsd or the plate's one that allow u almost 100% lock capability
these are some options