I can't remember the exact sizes but there's a guy on Puk who sold them for about £200 with delivery miles only, so genuine pads n disk not even bedded in with full calipers ready to bolt on for £200!!!
I've used mine on track for awhile and had to upgrade the rear to match the new stopping power, for a budget price I find them very capable.
The kit

The old and new pads

Old and new disk

I think there 300mm disk from what I remember but you will need to drill them to 4 stud, which is a lot easier than it sounds!!