I was taking a sweeping right hand bend yesterday when i heard a metallic rattle like a bolt falling off underneath the car. The car now pulls gently to the left at highway speeds, and i can feel slight vibration from the front left corner when going over uneven surfaces. Im taking the car in to checkout the front left suspension tomorrow...any ideas on what could have broken off?

The car has bilstein/eibachs with top and bottom braces fitted.