Hi, I had the dealer fit it, they send out the kit to be painted and the dealer fits the kit. Our dealer has installed quite a few so they have it down pretty well.

I got the dealer to fit the towbar at the same time.
With oem 20" wheels they change out the rear mudflaps again so to fit the kit. Not sure whether they come with the kit or there an extra.

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X5 M50d White | 20" Rims | Adaptive Drive, Self-Lvl Susp | Act/Steer | HUD | Xenon, Adapt Lights | H-Beam Ast | Rear/Side Camera | Panorama S/roof | Auto Tailgate | Comfort, Active, Ventilated, Heating, Lumbar, Navada Perforated Leather Seats | Comfort Access | M-Steer Wheel w Pdle Shift |Sports 8-Speed | Active Crus Stop/Go | Proff Nav + TV, DAB | 16 Spk Ind Audio | USB |Internet-eMail-SMS-Apps | 4 Zone Air | Speed D/play | Towbar | 20% Tint | 5mm Castor Bushes | Yellow Calipers, Ceramic Pads |