Alpha-N Performance has released a complete package for the BMW M4 and it is not exactly subtle. On the exterior, we see a carbon body kit with a new front bumper, GT4 dive planes and a rear diffuser. You may also opt for the trunk lid spoiler or an adjustable wing with optional spoiler. With this aggressive styling comes a performance hike and it is pretty solid too. In standard configuration, the M4 pumps out 431 horses but thanks to a multi-channel chip tuning box and stainless steel exhaust, the output is pumped up by 100 horses to 530 horsepower and 685 Nm of torque.