The Deutz Fahr Agrotron K 120 4.0 - 116hp (All) produces 116bhp and 447Nm in standard form. Our Stage 1 ECU tuning file raises output to 116bhp and 501Nm, a gain of 0bhp and 54Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.