The Seat Leon 1.6 TDI CR 90hp (5F MK1 - 2012 - 2017) produces 90bhp and 230Nm in standard form. Our Stage 1 ECU tuning file raises output to 150bhp and 320Nm, a gain of 60bhp and 90Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.