as Azrael says you will have to do this. this is a know problem and can happen when fitting coilovers to the saph.i had to do it my self last year.
just way off where its rubbing and give it a few belts in the area,
its only a small area that rubs and you dont have to use a sledge to do it. make sure you reprotect the area you have hit as it normally will expose some bare metal