The Volkswagen Polo 1.9 TDI 130hp (2005 - 2009 ( 9N3 )) produces 130bhp and 310Nm in standard form. Our Stage 1 ECU tuning file raises output to 170bhp and 390Nm, a gain of 40bhp and 80Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.