The Audi A1 S1 2.0 TFSI 231hp (8X - 2015 - 2017) produces 231bhp and 370Nm in standard form. Our Stage 1 ECU tuning file raises output to 300bhp and 440Nm, a gain of 69bhp and 70Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.