05+ LGT fronts, 4 pots, and a dinner plate
LGT rotors are indeed thicker; 30mm vs. WRX/4pot 25mm
For the record; the 03-04 Legacy GT's got the WRX front brakes, the older years got the same size fronts as GC RS's, and all L's in the BE/BH got those brakes as well. There may have been some overlap on the 02 year, but I'm not 100***37; sure.