The Case Magnum CVT/CVX 340 8.7 Tier 4B 340hp (All) produces 340bhp and 1671Nm in standard form. Our Stage 1 ECU tuning file raises output to 410bhp and 1970Nm, a gain of 70bhp and 299Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.