The Opel Astra 1.0 Turbo 105hp ((K) - 2015 - 2018) produces 105bhp and 170Nm in standard form. Our Stage 1 ECU tuning file raises output to 130bhp and 220Nm, 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.