Fits: All E8X & E9X Non-M 1 & 3 Series BMW's. Benefits:- Removed pre-load in rear sway bar (stability)- Increases link stiffness for sharper rear roll support (control)- Free pivoting spherical bearing (no suspension binding)Note: A bearing mounted toe arm will not increase NVH. Material: - 6061-T6 Aluminium - Anodised Black (hex bar & spacers)- Chromoly steel 3-piece, Teflon lined rod ends If you plan to corner balance your car then, adjustable sway bar links are a must. Taking the pre-load out of the sway bar will make the car corner evenly left and right. Swapping to a link with solid joints instead of a rubber bush like the factory unit eliminates unwanted deflection and lets the sway bar doing its job more effectively. With an adjustable length and a rigid construction these links are capable of coping with a substantially upgraded rear sway bar.