The Deutz Fahr Agrotron K 90 84 - 84hp (All) produces 84bhp and 372Nm in standard form. Our Stage 1 ECU tuning file raises output to 84bhp and 417Nm, a gain of 0bhp and 45Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.