caster camber kit needed ?

Hi,

My 2002 lancer is using the left front tire in the outside. I brought the car in to do the alignment. They told me they did the alignment as much as they could but they also told me that they can't fix the problem all the way without installing a caster camber kit. So before I pay them 200$ to do so I would like to know if the lancer really need that to fix my problem.

Thanks