If you thinking about the sportlines, give them a call and ask to speak to one of Eibach's tech's. Find out what the spring rates at front and back. On my 86 accord the rear rates for sportlines is "shocking" low. The tech himself paused to double check, thinking if was incorrect. In the end he figured that the bump stops must come into play, raising the effective rear spring rates.
Really low rear spring rates ='s more understeer.
