i seriously have no idea what it is

[sr20det4mys13]

well i got my s13 89 about a year ago from 2day.. been running good have about 150, on the ka getting the sr in the next couple weeks, but i have one small problem and i want to see if anyone has an idea what it could be. its a problem when my car is rolling, i have this kind of sqeeking noise on the front left tire section, i got it checked and they said your gunna need new rotors, so i got brand new brembo rotors, and the noise isnt as loud but its sounds like if a little piece of metal is sticking out and hitting a part of the rotor or something or some part of the hub.. but im sure something is bent or something because it started when i was driving down the freeway the 91 from riverside thru the toll road and there was a cone in the middle of the lane i swearved for it not to hit my tire and hit some where around the inside of the tire, does anyone have a clue? im thinking it could be the hub but i have no clue what it could be? if anyone has a clue hit me up.. any help is appreciated.. thanx.. latah