I need your suspension expertise! I have never had any adjustable LCAs, but I'm looking for used ones for my car (at least a front pair, for now).

Will these adjustable lower control arms fit my 2002 996.2 c2 with litronic headlights? Hard to find what they are exactly. Would I need the 997 trailing arms?
Do they all happen to be *just* for the right front corner of a 997 cup car? Can they be used on the left front too?

Part numbers from the photos:
997.341.341.90
99734104293
9973415410R

Thank you!!