The Case Magnum CVT/CVX 380 8.7 Tier 4B 379hp (All) produces 379bhp and 1850Nm in standard form. Our Stage 1 ECU tuning file raises output to 450bhp and 2050Nm, a gain of 71bhp and 200Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.