What’s up All,
I have a rattling/vibration sound that has been driving me crazy now for the past month. I have a 2013 g37 sedan on Fortune Auto coilovers, eibach sway bars front and rear with new nismo end links front and rear. The sway bar end links and coilovers are brand new, bushings probably have about 35,000 miles on them. I get this sound usually only when I’m decelerating more so after I have been driving it for a bit. I have triple checked all connections for anything that’s loose can’t seem to track anything down and it’s driving me nuts!
Any thoughts on what it could be???? Attaching a video of it as well. Thanks!!!!!!

 

For me it was my coilover top nuts that kept working themselves loose. I threadlocked them and it went away.