The Maserati GranTurismo 4.7 V8 460hp (2017 ->) produces 460bhp and 520Nm in standard form. Our Stage 1 ECU tuning file raises output to 485bhp and 550Nm, a gain of 25bhp and 30Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.