VR6 Brakes

[Volksee77]

Guys I have a set of 280mm early VR6 rotors and calipers and was looking at doing a 288mm conversion. Do you know if the calipers have the same mounting holes and offset for 288mm late model calipers as the 280mm early model calipers? Also guys do you know if the late model calipers have twin or single piston setup?
Luke