Condor Speed Shop - Solid Control Arm Mounts - Front Control Arm Bushing E46 (Treehouse TrackCAB)Our CNC machined control arm brackets are made of 6061 T6 aluminum and are fitted with a Delrin insert. Designed for the street or the track, they hold the control arm steady and eliminate "shimmy" caused by stock bushings. They sharpen steering and improve overall driving feel. Comparable to the NLA Treehouse E46 Eyeball Arms. Made in the U. S. A. Street Approved, a marginal increase in NVH Easy Installation, no need for a press CNC Aluminum