The Volkswagen Transporter / Multivan 1.9 TDI 86hp (T5 - 2003 - 2009) produces 86bhp and 200Nm in standard form. Our Stage 1 ECU tuning file raises output to 140bhp and 320Nm, a gain of 54bhp and 120Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.