Dinan Lightweight Tubular Anti-Roll Bar SetAlmost all street cars come from the manufacturer with an anti roll bar as it is a common part of modern suspension systems. However, they are designed to be overly soft for maximum comfort. An anti roll bar does exactly what it says by reducing body roll in all situations. Every Dinan tuned anti roll bar is built and tuned specifically for each BMW chassis. Lowering the amount of body roll keeps your BMW more level than stock (while still allowing