The Volkswagen Passat / Magotan 4.0 W8 275hp (B5 - 1996 - 2005) produces 275bhp and 370Nm in standard form. Our Stage 1 ECU tuning file raises output to 295bhp and 395Nm, a gain of 20bhp and 25Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.