I install roof racks also. Near new condition. These will fit X1 X3 X5 side rails and will include all components needed, Feet, Loadbars LB50, and correct Fit Kit, all for $260.
I have many Thule, Yakima and BMW OEM base racks/crossbars for all different BMW models.
Raised side rails
Flush side rails
I can do the complete installation for 20 if you prefer.
The Thule BMW X3 with Flush Side Rails 2011-2014 Complete Thule 460r Rapid Podium AeroBlade Roof Rack includes everything you'll need to attach a sport rack to your BMW X3 with Flush Side Rails. This complete rack includes the following components: Thule 460r Rapid Podium AeroBlade Foot Pack, one pair of 47 inch AeroBlade load bars, Thule Fit Kit 4023, and 4 bar end caps. Load bars slide onto the 460r feet. The 4023 Fit Kit attaches the components to the roof. The maximum weight capacity for this system is 165 pounds. Thule Lock Cores are sold separately. Fits the BMW X3 with Flush Side Rails from 2011-2014.
These should also work for BMW X1, X3, X5, X6, some 3 and 5 series BMW, Mercedes, Honda Element CR/V, Subaru Impreza WRX STi, and other vehicles with either Side Rails, fixed attachment points or other applications.
Exactly the same as this setup: