Also the V6 calipers will fit. They offer the same size contact surface and operate the same (are just as good) but use a slightly different pad.
Advantages= easier to find and cheaper to buy.
You will need the 'special' discs that are four stud but the right size for the bigger calipers. You can get these from PVD, Regal, Courtney etc. They are basically a disc of the right size (Fiat coupe maybe???) with a spacer ring to take up the diffrence in hub diameter.
I went for the PVD discs (drilled, grooved & black phosphate finished). They look teh biz but at £200 the pair they aren't the cheapest.