I have a 2001 Civic LX Coupe, with 17x7 rims wrapped in Yokohoma Avid H4 (215/45/17). Today I just had a set of Eibach Pro-Kit lowering springs installed. Almost everything is great; the appearance, road holding, even the ride is actually still quite nice. One thing is really wrong though, and it is high speed lane changes. The car sways like CRAZY!! When I compete a lane change, the body of the car swings to one side, then another.. almost like I am doing it super aggressively, but I am not. I noticed *slight* more sway when I bought new rims & tires, but now it is extremely noticeable. I would say to the point of dangerous.

What is wrong? Do I need new shocks? I have almost 70,000km (about 43,000miles) on it... hmmm. My last car (a Toyota) went on to 160,000km without needing to replace shocks..... is this normal? Or is it something else besides the shocks?

Help would be much appriciated...