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Torque For Two: G-Power’s BMW M3 And M4 Models Now Produce 700 Nm!

G-Power has set about tuning this pair of ‘M’ machines with new engine electronics as well as other power-enhancing wizardry. BMW’s M3 and M4 models are powered by a 3.0-liter inline-six TwinPower Turbo engine that generates 431hp and 550 Nm (406 lb-ft) as standard. G-Power’s version ups this to 520hp between 5,500 and 7,300rpm and…