Your heat shields for the front rotors on the brakes may be bent and dragging on the rotor. Bend them out away from the rotor. This is tough to get right as when you move it in one plavce it bends in another and suspension load changes will make it touch in different areas going around a turn or in other situations. So, be patient trying to get them straight and only use your hands as that is enoguh force to do the job. Do not hit them with a hammer as they may crease and never be able to be straightned.