Front Brembo Calipers \ Ferrodo Pads \ Grooved discs

Had continuous issues with my brake setup (OEM calipers, Ferrodo pads, braided lines, groved and vented discs - same size as OEM discs) while doing track days, the setup isn't up for the job (was fine for fast road) so decided to go for a proper big brake upgrade and got some Brembo calipers off an R33 GTR V-spec, with Ferrodo pads and grooved discs. I needed to get some suitable caliper mounting bolts.