The Volkswagen Passat / Magotan 1.4 TSI 125hp (B8 - 2014 - 2019) produces 125bhp and 200Nm in standard form. Our Stage 1 ECU tuning file raises output to 170bhp and 300Nm, a gain of 45bhp and 100Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.