Rear disc help wanted

I have a gold rear disc conversation i want to replace the discs with grooved ones and don't know which ones to buy can someone please help. Thanks for any help

Any really mate, rears don't see much brake force so i.wouldnt bother going overkill, defo wouldn't use race pads as your just end up locking the rear up.

The ones on my car don't have bearings built into them but all the MK2 gold discs look like they do so what one would i need

If there mk2 golf discs then your gonna need matching bearings then