The Renault Vel Satis 2.2 DCi 115hp (All) produces 115bhp and 250Nm in standard form. Our Stage 1 ECU tuning file raises output to 140bhp and 310Nm, a gain of 25bhp and 60Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.