they are from pepboys, I was thinking going with those rotor and hawks brake pads

 

EBC pads are good ,the rotors are ok,but are noisy,because the slots go all the way to the edge of the rotor.They make like a whooshing sound.I had them on my Accord from sponsorship,but now I took them off.I still run the EBC brake pads though.

 

how big are the groves to make the wooshing sound?

 

They are the slots on the rotors like any other rotor,but extend all the way to the outer edge of the rotor.Other rotors stop short of the edge.