VF Engineering BMW (E63/64) 645i/650i ECU Tuning Software


VF Engineering


BMW 645Ci/ 650i V8 

Model Year: 2004 - 2010

Engine Code: N62B44 - N62B48TU



HEX Tuning software is delivered as a proper "flash tune” meaning that the data area within the ECU which is responsible for the power management and engine safety is re-calibrated to increase horsepower and torque without compromising long term reliability. Each new application begins with dyno testing to measure and plot the factory power delivery in order to track the changes as we increase engine load values and enhance torque management to arrive at a smoother, more powerful driving experience! Additional features include removed top speed limited; increased rev limiter; improved throttle response; smoother power delivery.

Stage ONE



Speed limiter removed

Improved throttle response