I think the Brembo's would probably fit behind my Borbets as I gained 40mm in offset over stock. (Or is it backspacing that you need? I can't remember.)

Yah I had factory Brembo's on my G35 and while they were ridiculously grabby and great to look at, they were expensive as **** - the rotors were $900+ A PAIR, and the pads were like $200 each.