These optional graphite lower arm plates allow XB9 owners to stiffen their wishbones that makes the car more stable and easier to drive under high-grip conditions. The plates can be easily mounted/dismounted on the arms with just four screws and easily change the hardness of the whole front suspension.
#352191 Xray XB9 Graphite Front Lower Arm Plate 1.6mm (2)
#353191 Xray XB9 Graphite Rear Lower Arm Plate 1.6mm (2)
Source: Xray
