Their Stage 1 F10 M5 and F12/F13 M6 kit is good for pushing the V8 bi-turbo S63Tu engine to 640 hp / 575 lb-ft torque (780Nm) .

This is a +80hp / 74lb-ft gain over the new M5 and M6’s factory 560hp / 501lb-ft torque.

The G-Power F10 M5 tuning program offers:

G-Power Stage 1 tune - 640hp/780Nm (575 lb-ft) with VMAX removal. Good for more than 310km/h (192mph)
Quad stainless steel sport exhaust system
400mm Carbon Ceramic Brakes
21″ Forged Silverstone RS wheels (3 piece)

More details and photos to come…