Thanks Watrob. I have 20" 214 wheels currently fitted on my X5, shouldn't be a problem fitting larger rotors.

Will look into EBC and Redstuff pads, not fussed about the painting the calipers as it's just a cosmetic improvement.

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'07 X5 3.0d - Black Sapphire Metallic / Camel interior
Specs: Sport pack, Executive, 7 Seats, OEM 336, Hifi
Mods: Aero Kits, Titanium grilles, 4.8i exhaust, Tinted, ///M Footrest, OEM Sport pedals, OEM Rubber mats, OEM Sunshades, LCI Taillights