The Seat Leon 1.6i 8v 100hp (1M - 2000 - 2006) produces 100bhp and 145Nm in standard form. Our Stage 1 ECU tuning file raises output to 107bhp and 155Nm, a gain of 7bhp and 10Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.