ok so i lowerd the ss/tc and it looks great, but now going over speed bumps there's a vibration noise in the rear. I cant figure out what it is, any ideas would be helpful....


thanks...

Eibach springs....

 

could be your rear end scrapping the ground after you come off the bump..if you only hear it when you go over something you can almost garuntee thats what it is or you would hear it more often than not. what kit did you use to lower your car?