The latest generation BMW M4 is already quite flashy straight ... If you had asked us up until recently what our opinion was on tuning the G82 (internal codename for the new M4), we would have ...

We upgrade our Twilight Purple BMW F90 M5 with Supersprint catless downpipes and a Stage 2 remap! How much power does it gain, and how does it sound? Watch the full transformation and dyno results.