The factory Bushings are far from par, most of your clunks come from LCA (Lower Control Arm) bushings going out. We have developed a bushing using a spherical ball socket to eliminate the amount of give the arm will produce increasing the handling and traction overall. These units are made of 6061-T6 aluminum and are a bolt in for a FE5 arm.
** You must grind away a little tab for these to sit flush, pics at the bottom**