I'm still looking for the pix with the part numbers,they didn't need to be machined they went straight on no dramas,did it myself. I just went to an RDA distributor and they looked up the stagea RS4S on the computer and they got them delivered within 2hrs for me as well as front brakes. All up the slotted rotors and front pads cost me $290 not fitted. It's really not a drama or expensive to get front rotors and pads fellas. It's a f**ken sweet deal