• Factory drilled 0.8mm holes • enables a thicker surprise oil • More consistent handling • pair of 4. • Fits X4 & T4
PSS pistons with factory drilled 0.8mm holes (2 in each piston). Permits a heavier shock oil to be utilized, for an even more constant managing. To be used with a PSS surprise system for ULP shocks 308029 and SLP shocks 308039. Pair of 4.
