2000 Volvo s80 TERRIBLE grinding noise

[Nickstone]

I have a 2000 volvo s80 2.9 approx. 103k miles... One day I had to make an emergency stop and after slamming on my brakes, my car stopped fine but once stopped, a really bad grinding noise came from what sounded like my brakes.. Remind you the car brakes fine when regular braking. Not to long after that, I got new rotars & pads, thinking that would fix it.. Nope, still does it. So now everytime I slam on my brakes, the car stops in a good time (I think) yet I hear that terrible noise. Makes me really worry!! Also, the ABS light recently came on for the first time ever & then it goes off... Maybe that could have something to do with it but idk. If anyone knows anything, please lmk!! Thank you

 

[Nickstone]

ALSO, sometimes I this noise comes on when I press the pedal to the floor to accelerate from a light or stop sign.. But not everytime, only on occasion