Help to widen the track

Hi finally got distance discs 30mm per wheel and mounted the same. It looks great, the tires are standing but max 5mm out is no problem and so, after a few days I noticed that it grinds from time to time, they are still original shock absorbers and springs. A buddy thinks I can mount springs limiter and the thing is Gesgesen. Is that true? Is this the last way out? Or what can I do to not grind the tires at caroserie. Distance discs I don’t want to cut to no case mount or exchange.