The Volkswagen Passat / Magotan 2.5 TDI 163hp (B5 - 1996 - 2005) produces 163bhp and 350Nm in standard form. Our Stage 1 ECU tuning file raises output to 190bhp and 390Nm, a gain of 27bhp and 40Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.