Images of my Touring xi lowered with ACS springs. No issues, and I love the ride. These are made for the stock dampers and approved by BMW. My dealer even installed them before delivery. They are manufactured by Eibach.
325xiT, Manual, Titanium Silver, Black with Alum Interior, Premium Package, Sport Package, Winter Package, Xenon Adaptive Headlights, 18" 196 Wheels, ACS Springs, Tinted Windows, Chrome tips, UUC Shadow Shift knob, BMW Alum Pedal set, BMW strut brace