Here's a how to guide for 350z front brakes....
Parts:
350z Calipers and Discs
4 off M14x1.5x45 bolts
Brake fluid
Tools:
14mm drill bit
Angle grinder with fine cutting disc
Duck Tape
1. Remove the pads, calipers and discs (just 2 bolts). Undo the brake hose and cap it off to top the fluid leaking.
Attachment 28564
2. Cut into the guard and fold the edges back.
Attachment 28566
3. Drill out the existing caliper holes to 14mm.
Tip: Stick some duck tape over the magnetic ABS sensor. This saves you having to clean the swarf off it later
Attachment 28565
4. Fit the new calipers with the M14 bolts
Attachment 28567
5. Bleed the system and you're done!
Attachment 28568