The Seat Leon 2.0 TFSI 265hp (5F MK1 - 2012 - 2017) produces 265bhp and 350Nm in standard form. Our Stage 1 ECU tuning file raises output to 365bhp and 470Nm, a gain of 100bhp and 120Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.