The Oldsmobile Silhouette 3.4 V6 185hp (1997 - 2004) produces 185bhp and 280Nm in standard form. Our Stage 1 ECU tuning file raises output to 205bhp and 310Nm, a gain of 20bhp and 30Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.