Xray have announced their new PSS pistons with factory drilled 0.8mm holes (2 in each piston) for the X4 and T4. These new pistons allows for a heavier shock oil to be used, for a more consistent handling. They are to be used with a PSS shock system for ULP shocks 308029 and SLP shocks 308039...
• Factory drilled 0.8mm holes
• Allows for a heavier shock oil
• More consistent handling
• Set of 4.
• Fits X4 & T4