The Volkswagen Golf 2.0i 16v GTI 150hp (Mk3 - 1991 - 1997) produces 150bhp and 180Nm in standard form. Our Stage 1 ECU tuning file raises output to 165bhp and 195Nm, a gain of 15bhp and 15Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.