This happened to me after the first track event on the way back and it seems like a common issue. So far I've heard from 4-5 1LE owners saying that they heard a loud metal clunking noise/rattle from the front side of the car.
I jacked the car on my way back home to see if anything loose and thought this might be a blown strut but I wasn't sure since I knew that I never hit a pot hole or expected on a car with only 1600 miles on it. It was more noticeable when going over little bumps (when there's tension on them)
You may start reading from post #41 and 42 here:
http://www.camaro6.com/forums/showth...=484731&page=3
and video showing that (thanks to AZ_1LE for sharing the video):
In my case, upper end links on both side were loose, it seems like they're not torqued enough from factory . I searched and found that the Gen 5 endlinks torque specs were 36lb/ft torque and just torques them to 38 lb/ft with my torque wrench just to make sure.
You will need a 6mm allen key (inside the bolt) and 18mm socket for the nut that goes over the endlinks to tighten them.
I am surprised by the fact that there's no recall or TSB about this yet