While I was under the car (01 V40) I noticed that my right lower control arm was bent out of shape. My question is should I change both sides or just the bent one? and What parts do I need? Autohaus Arizona has the control arm & ball joint, do I need the bushings too? and what other parts would I need or should change while I'm down there? Thanks in advance.

 

The control arm should have the bushings and maybe even the balljoint.

That should be all you need is the control arm and balljoint.