I have a vibration in my steering wheel, but it is only when the steering wheel is NOT top dead center. If I am driving straight it doesn't vibrate, but when I turn slightly to either side to correct my self or go into a gradual turn it vibrates. Feels kind of like a bad rotor pulsation, but I am not applying the brakes. I have headers and I know the steering rack goes through a couple of the tubes. I thought maybe this might be the issue if they are rubbing, but it feels more like it has to do with the wheels. Anyone had this issue? Or maybe shed some light on it? Thanks in advance.