2001 lexus is300
So I recently "upgraded" my rotors to R1 concepts drilled and slotted with ceramic pads. But since I have, I keep hearing a squeaking noise coming from the passenger side, unsure if its front or rear. I have pulled both front and rear off since I heard the noise, but nothing seems out of place or damaged, the pads are evenly worn, the rotors are straight and everything torqued to spec. Any ideas?