OK, now Im replacing suspension parts. Do polyurethane bushings help?
Not really, unless you are planning to modify the springs, struts, and sway bars. Some people have claimed to use the 750iL bushings successfully, but my feeling is that the car, in its stock form, wasn’t designed to run with these, and these stiffer bushings will put more stresses on the rest of the suspension, which were not designed to work with them. Needless to say, any new bushings WILL help, if your existing ones are worn. The stock bushings are very cheap – the labor is difficult, unless you can remove the ball joint without damaging it, and have a workbench to carefully press out the old bushings and press in the new.