The Volvo S80 2.5D 140hp (1998 - 2006) produces 140bhp and 290Nm in standard form. Our Stage 1 ECU tuning file raises output to 175bhp and 330Nm, a gain of 35bhp and 40Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.