I just installed new brakes and cross drilled rotors from Bavarian also I put in Eibach lowering springs. The problems I notice is: The springs are making a creek like sound sort of like something needing oil. Is this normal? Do they need time to break in? also I did not change the shocks. could the sound be coming from shocks because they are not shorter type that goes with lowering springs? Now also I can hear a grin noise coming from the brakes/rotors area its not really loud but its got my attention. I was told the new brakes and rotors have to be broke in. How many miles does it take to break in and could this be why I hear this sound? Thanks in advance Rock 94 525i sharked