Xray X4 PSS 2-hole 0.8mm pistons
New for the X4, Xray have introduced these new composite PSS 2-hole 0.8mm pistons. The configuration allows for a heavier shock oil that gives the car a more consistent handling. Sold in a set of 4, they also work with the T4 touring car.
Source: Xray [teamxray.com]