The Seat Leon 1.4i 16v 85hp (1P - 2005 - 2012) produces 85bhp and 130Nm in standard form. Our Stage 1 ECU tuning file raises output to 95bhp and 145Nm, a gain of 10bhp and 15Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.