The Potato

From Steeda?

http://www.steeda.com/products/x5_balljoint.php
http://www.steeda.com/products/bumpsteer_kit.php

Does it really mess up your bumpsteer so much when you lower your car that you actually need to install these?

degeze

I installed a bumpsteer kit on mine but I got it from BMR Fabrication. If you install a set of "aggressive springs" (lowers the car more than 1.5") the bumpsteer will increase. By adding a bumpsteer kit you can drastically reduce unwanted toe change by adjusting the tie rod height where it connects to the spindle.
IMO I think it was a great addition, here is a pic of it installed my car.

157dB

Get the rear lower control arm relocation kit FTW.