The Case Maxxum 125 6.7 Tier 4A 125hp (All) produces 125bhp and 682Nm in standard form. Our Stage 1 ECU tuning file raises output to 158bhp and 850Nm, a gain of 33bhp and 168Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.