SS any model springs will drop and LS or base G5 about 1 to 1.5 inches
Eibach prokit will do nothing for an SS, SS/SC, or SS/TC. LS 1 to 1.5 inches
Eibach sportlines is agressive drop but ride is harsh and pogos on ruff roads. (Even with Koni shocks) SS 2" drop LS 3" drop
THere are other...