The Volkswagen Polo 1.4i 16v 100hp (2005 - 2009 ( 9N3 )) produces 100bhp and 126Nm in standard form. Our Stage 1 ECU tuning file raises output to 110bhp and 140Nm, a gain of 10bhp and 14Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.