The BMW 7 Series 725 TDS 143hp (E38 - 1995 - 2001) produces 143bhp and 280Nm in standard form. Our Stage 1 ECU tuning file raises output to 175bhp and 345Nm, a gain of 32bhp and 65Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.