post Eibach springs issues?

Fishey

You installed them wrong would be my guess.

logenl7

Thats a good starting point.. Also make sure you reinstall the factory spring sleeves at the base of the front coils.. Those little plastic pieces cut out a world of vibration and noise.. Also, look into taking it to a race specific alignment shop. I wouldn't think you'd need a camber kit with the Eibach Springs, but maybe you do.. I know when I installed my Swift springs, I didn't hardly change the factory spec at all during install, but I had to change my specs to a more track specific set-up just to cut vibration and high speed pull... That being said, you won't be able to completely cut out vibration above 60mph.. unless you go with a more mild (smaller / thinner) tire / wheel set-up.