• Factory drilled 0.8mm holes • allows a significant surprise oil • More constant handling • number of 4. • Fits X4 & T4
PSS pistons with factory drilled 0.8mm holes (2 in each piston). Licenses a heavier surprise oil to be utilized, for an even more constant administration. To be utilized with a PSS shock system for ULP shocks 308029 and SLP shocks 308039. Group of 4.