I don't know much about specific kits but you are going to compromise some ride qualit with lowering springs and more aggressive shocks/struts. I run a coilover that is designed for max grip and handling so it does not ride too well, not as bad as some but definately not stock. Probably your best bet would be to get an eibach sport kit or H & R kit with KYB or similar shock. What car is this going on?