The Mercedes ML 350 V6 - 245hp (W163 - 1997 - 2005) produces 245bhp and 350Nm in standard form. Our Stage 1 ECU tuning file raises output to 260bhp and 370Nm, a gain of 15bhp and 20Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.