The Case Optum 270 6.7 CVX Tier 4B 271hp (All) produces 271bhp and 1194Nm in standard form. Our Stage 1 ECU tuning file raises output to 320bhp and 1400Nm, a gain of 49bhp and 206Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.