Car is twitchy/erratic

[SittinOnDubsWGW]

Ok, so I got SPL front lower arms, tension rods, tie rod ends, steering rack bushings and Tein tie rods. After all of this is on, it's not uncommon while driving at speed for the steering wheel to all of a sudden pull one way or the other. It doesn't pull a lot, but like a quick jerk, and it will often come right back.

This isn't standard, right? hahaha. Any ideas on what could be the problem.

[Ares240SX]

Sounds like you need an alignment.

[I LUV MY S13]

you could have a bit more toe on one side than the other

[slider2828]

Rack is shifting..... or subframe movement.... Check to make sure there are no signs of shifting left and right on the rack.... shim the rack bushing if needed and torque the rack bolts down to 80 ft/lbs at least....

a moved ment of 2-5mm on the rack is a LOT....