The Vauxhall Insignia 2.0 CDTI 170hp (2017 - 2019) produces 170bhp and 400Nm in standard form. Our Stage 1 ECU tuning file raises output to 195bhp and 450Nm, a gain of 25bhp and 50Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.