G-Power has officially revealed their latest BMW tune – a 600 horsepower M4 Convertible.
G-Power has been able to tune the M4’s 3-liter twin-turbo S55 engine up to 600 HP, an increase of 175 HP over the factory output of 425 horsepower. According to G-Power, they have also been able to increase torque levels from 406 lb-ft in the standard M4 to 546 lb-ft in the tuned car.
These power gains were achieved through a combination of ECU tweaks as well as upgraded, larger turbochargers. The addition of new turbochargers allowed G-Power to increase boost levels and thus increase power.
The G-Power M4 Convertible also includes a titanium exhaust system as well as a 21″ HURRICANE RR forged wheels.
Overall ride height has been dropped by 0.5″ thanks to new coilovers.