Dinan is an American BMW tuner and they have just released their power upgrade package for the F10 M5. To start with they added a bespoke carbon finre cold air intake as well as a free-flow exhaust. Then they installed a DINANTRONICS module and made some other tweaks. The result? A healthy 123 hp increase over stock. The final numbers are 675 horses with 872 Nm of torque. The total cost of the performance boost is $9,747 but can you put a price on rocking up at the robot next to someone in the same car and you end up destroying them? Hahaha…