The Maserati Quattroporte 3.8 V8 GTS 530hp (2013 ->) produces 530bhp and 650Nm in standard form. Our Stage 1 ECU tuning file raises output to 570bhp and 800Nm, a gain of 40bhp and 150Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.