BMW's X5 is notorious for running negative camber and wearing tires. Use these adjustable rear upper control arms to change camber from -1 to +3 degrees. Featuring bonded rubber bushings and booted adjustable ball joints, this pair of forged aluminum arms will let you set camber to where you want it while maintaining factory ride quality and noise vibration & harshness (NVH.) This kit is a pair of arms, it will give you change on both sides.