HARD Motorsport - BMW E92 Chassis-Mount Spoiler Upright Kit (E92UPRIGHT)Features: External rear spoiler uprights design to match the original profile of the O. E. M. trunk of the E92 Downforce is distributed down low to the chassis (instead of up high on the body trunk lid), maintaining a desired low center of gravity Components manufactured out of sturdy, lightweight aluminum Unique lock pin design allows for normal function of the trunk lid without special internal brackets and mounting points Mounting hardware included