The Turner Motorsport sway bar / sway bars for the E46 M3 were designed to provide better overall balance and performance than the stock anti-roll bars. With these bars you can greatly reduce body roll and decrease the understeering effects of a staggered wheel setup. They are adjustable in the front (3-position) and the rear (2-position) to fine tune the handling for both the street and the track. The Turner bars are sized at 30mm in the front and 25mm in the rear (+4 and +3.5mm from stock, respectively). These bars are crafted from a special spring steel that is both stronger and more resilient than competitive sway bars. They have been shot peened and heat treated, and feature precision forged ends.