The Vauxhall Insignia GSi 2.0 Turbo 260hp (2017 - 2019) produces 260bhp and 400Nm in standard form. Our Stage 1 ECU tuning file raises output to 270bhp and 430Nm, a gain of 10bhp and 30Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.