[EgoFalcon]

I know I'm not Matt but I know for a fact you can't use front calipers on the rear. Front calipers to suit 355mm disc, rears are 330mm.

Also they arn't for FG falcon, search on google images see what they look like (4 pot fg brembo's).

Those look more similar to redline addition front brembo's on SS commodores (except they are red not silver) or SRT Chrysler (which I think is a bigger disc size).