I own a 1989 civic si hatch. And I want to slam it. What all other than coilovers will I probably need to do. I need detail. I'm slightly new to the scene. But I love Hondas and want to learn alot more than I do. I bought eBay coilovers for temporary use. What else?

 

lowering springs, depending on how low you want to put it you may want to get a camber kit unless you're going to keep OEM wheels since they would stay inside all youd have to do is roll the fenders.
my CRX has ebay adjustables on it and its pretty low and dont have a problem with them at all plan on swapping them out though, got the car with 'em.

 

My brother put mine on the front but it defiantly didn't drop 4 inches. I'm thinking either the shock is bottomed out or a arm hitting top wall. Hmmm