Do i really need all those expensive parts to lower the Z? i was just thinking about buying the KYB adustable shocks since i already have the eibac springs. the car hops alot in the bumps and feels like its going to brake apart in some small holes but even worst The car is bounds alot when i past over 110 mph and that really scared me once since these highway in NYC have several pot holes and you never know when you going to fall in one. So my question is will i be alright if i Just buy the KYB shocks and use it with my eibac springs or should i buy somthing else?