Morning, Sorry about the confusion, after speaking to our technical guy he has informed me that DBA 4562 has only ever be sold in slotted and not undrillled which We believe you would require. He has told me that DBA 759 could be made as a 4000 series but would require a minimum of 25 people interested in buying the part number. Otherwise you would need to wait for a new run to be made up of the part number which could take anywhere from 3 to 12 months. He has told me that the standard slotted rotors would do the job, but would not be suitable if you are doing track days.