640i (320 HP/ 235 kW)

Torque Increase (NM):113Economy Gain (MPG):20Power Gain (PS):79Performance UpgradeMore power, greater torque, superb mid-range punch, stronger acceleration and quicker responses: you’ll love the new characteristics RaceChip chip tuning will give...

Torque Increase (NM):113Economy Gain (MPG):20Power Gain (PS):79Performance UpgradeMore power, greater torque, superb mid-range punch, stronger acceleration and quicker responses: you’ll love the new characteristics RaceChip chip tuning will give...