*Only for use with true coilovers, not the OEM style separated spring and damper* Necessary to notch stock upper spring perch for clearance on low cars* ~ Adjusts camber. Eliminates worn stock bushings for more consistent handling. TIG welded DOM steel with Clamping rod end receiver with metallic copper paint. Clamping double adjuster, Reinforced fork, and asymetric bearing side spacers with gold zinc. Offset subframe mounting spacers push arm away from CV joints. Maintenance free PTFE lined low torque spherical bearing. Great to pair with our Rear Lower Control Arm for complete control. Fits E36 323 325 328 M3, E46 323 325 328 330 M3 and Z4 ~includes pair of arms ~ Clamp on Swaybar mounts now available separately.