The Case Magnum CVT/CVX 250 8.7 Tier 4B 250hp (All) produces 250bhp and 1229Nm in standard form. Our Stage 1 ECU tuning file raises output to 320bhp and 1530Nm, a gain of 70bhp and 301Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.