had the problem with my car, had no shims on the front is why, i bought some project mu ones from gsl rallysport and it fixed the problem
i have had qfm a1rm pads on my r32 and now my r34 and done track days with them both and never sqealed, apart from the r34 when it didnt have shims
its not the pad, they with a heap of black stuff on the back of them ot help stop them from squealing