The Seat Leon 2.0 TFSI 310hp (1P - 2005 - 2012) produces 310bhp and 420Nm in standard form. Our Stage 1 ECU tuning file raises output to 330bhp and 470Nm, a gain of 20bhp and 50Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.