I had this on my 335d and it was a complete and utter waste of money... presumed it'd be similar for the F3x so never bothered.
It's easier and faster to use a smartphone.
F10 M5 Competition Frozen Austin Yellow / Sakhir Orange
Loaded, Akra carbon titanium exhaust, Carbon trim, Carbon spoiler, RKP carbon front lip + diffusor.
F15 X5 M50d - Mineral White w/Mocha Nappa Leather. Loaded, 599M 21" wheels, all M-perf. accessories.