I have no idea. I never measured bump steer in a factory 2nd gen. I've never even measured it on this one, but I can sure feel it. The closer the tie rod ends are to parallel with the control arms the better. My control arms are parallel to the ground at ride height, and my tie rods point up at maybe a 30 degree angle. Both are way different than stock, or even a lowered car. Mine is about 3" lower than stock.