Greasymule, how do you like the SPL bumpsteer reducing tie rod ends?

The bumpsteer geometry trade off that is made on the S13 is that the inner pivot points for the steering linkage and the control arm are located roughly the same distance out from the center of the car. This is the best case compromise for a macpherson strut setup that can't have all of the angles and lengths equal.

The reason that bumpsteer is minimized in most coilover shod cars is that the spring rate is so high. If the LCA/steering linkage barely deflects, then the effect is minimized.

If the S13 had zero bumpsteer, you'd be able to adjust the ride height without having to get an alignment.