let me chime in.. I had this same exact problem as you except I didn't find mine to sound as bad as your saying so maybe its not the same problem.

But, check the brake pads man.. My car was making that exact grinding noise you're talking about. I put the car up on jack stands looked at the pads and they were definitely low. Went to autozone and bought their ceramic pads. They had to order them for me so i didn't get them till the next morning. Anyways when i go to change my pads, there was literally no pad left on the front passenger.. It was metal on metal contact when I pressed the brake.

The pads for $40 total. So if I where you I'd definitely go check your pads

 

yea one pad could be gone so that could be your grinding noise...if ur car is jerking as well maybe a wheel bearing??

i also dont know how you still manage to drive it with this problem...makes no sense cuz all you are doing is making it worse

 

prolly jerking cause its metal on metal...it will seize and some point...then your fkt...shiet dont move - quite funny if you have ever seen it on the road... one wheel is not turning while the other 3 are... just one very long tire streak on the road....lol

 

^ FACK! I didn't know it will seize! Well it hasn't happened yet but I will try to minimize my driving =[ Ordering rotors and pads NOW! Thanks guys!

 

Just ordered stoptech pads n rotors. let's hope I won't die before then

 

Hope they come soon.. you shouldn't drive the car too much man