ECS tuning slotted rotors.
So I bought ecs tuning slotted rotors for my 330xi, that my wife drives, and after four months they warped already. Has anyone else had better outcomes with theses rotors? I sent an email to customer service and they replied back asking if I could take a pick.
Last edited by 717bimmerboym3; 11-24-2012 at 10:11 PM.