The Ferrari 348 GTS/GTB/Spider 3.4 V8 320hp (All) produces 320bhp and 325Nm in standard form. Our Stage 1 ECU tuning file raises output to 345bhp and 350Nm, a gain of 25bhp and 25Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.