Sleeve bearing mount for front lower con arm Less friction on the front arm eliminates movement due to input to the mount and improves control. The stock tires are mounted with rubber bushings, so under severe driving conditions, the tires will move off-track and lack handling stability. Hard rubber mounts are reluctant to rotate, and the friction is so great that it slows down the movement of the tires. The sleeve system consists of a stainless steel outer and a plastic inner, which allows the tire to move up and down as per the track even with large input, and the lower arm operates with low friction. This is an essential item for those with sports suspension and high-grip tires. Material: Stainless steel Applicable Vehicles BMW E46-M3 Note on ordering This product is shipped in the order it is ordered, so it may not be able to be shipped immediately even if it is ordered, since it can be ordered even while stock is out of stock. Please feel free to inquire about the delivery date and waiting order.