No modification at all.
Normally my cars spend most of their time on local tracks, but this time I wanted to set the max, and try it out before starting a possible upgrade with coilovers and camber plates.
After all, there are some very good BMW original parts on the 1M worth pushing to the limit before replacing with aftermarket.
AW E82 1M, 414 PS/636 Nm
Local tracks more fun than public roads