The Mercedes Sprinter 213/313/413/513 BlueTEC 129hp (2014 - 2016) produces 129bhp and 305Nm in standard form. Our Stage 1 ECU tuning file raises output to 190bhp and 420Nm, a gain of 61bhp and 115Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.