Bro this will have worse grip if anything compared to the last tyres (without taking into consideration the better tyre compound used over the one in the eurostars). Sure, a wider tyre will give u more grip to a certain point. But much more important is the sidewall height. The shorter the sidewall, the less lateral deformation the tyre will suffer during rapid cornering.
Nice car you have here btw, it looks sweet in black, try to keep it as detailed as you can. Black looks amazing when polished regularly or waxed with collinite's 915!