Ground Control STREET Camber / Caster Plates This a high quality, complete replacement for the e39 upper mount, this product is not the style that is bolted between and raises the car.
This is a camber/caster plate for the Z4M (does not fit Z4). Camber is adjustable through a 2.3 degree range, while caster is adjustable about 3/4 degree in order to be sure that your car can be properly aligned.
Stainless steel reinforcement included, ride height is unchanged from stock. Urethane cushioned mounting, plus, the weight of the car is supported by a completely separate rotating ball bearing, which is manufactured in Germany.
Allows for 23mm camber adjustment and 4 degrees caster adjustment.
click here to see without reinforcement