After the installation of either an Eibach spring set, a vehicle's alignment should always be checked. Once lowered, a wheel's camber may become "increasingly negative", meaning the top of the tire is angled inward (toward the center of the vehicle). While some "negative" camber aids in improving traction and road adhesion during turning, too much can result in peculiar handling and accelerated tire wear. This kit for your BMW will allow you to adjust the camber the way you want.