Add a 22mm Lightweight Tubular Adjustable Rear Anti-Roll Bar to reduce body roll to improve grip and stability while saving weight at the same time. The Lightweight Tubular Adjustable Rear Anti-Roll Bar is 29% lighter than a solid anti-roll bar of comparable stiffness. This anti-roll bar is adjustable from 39% to 72% stiffer than the stock bar. This 3 hole bar can be mounted in 3 different positions with stock BMW end links.