I've seen some coilover kits like weapon-r's or ground controls that you can use with the factory shocks. it is a good idea to lower your car with existing shocks? compared to a full coilover kits that are upwards of $1000, these kits are extremely cheaper - around $300. how much is it to get these installed? are there hidden costs that i'm not aware of? (alignment and stuff) can anyone recommend a good product that is like the weapon-r's or ground control? does anyone have something like this installed on there car and if so, do they like it? thanks!