We upgrade our Twilight Purple BMW F90 M5 with Supersprint catless downpipes and a Stage 2 remap! How much power does it gain ...
But over rough trackside curbing where the M4 CS’s chassis might buck the wheel back in your hands, the M5’s more-compliant ... always the iconic blue, red, purple of BMW’s M division ...
We just like seeing it punish the engine stand and light its exhaust purple. Hit the jump to watch and hear for yourself.