The Case Puma 145 6.7 Tier 4A 146hp (All) produces 146bhp and 698Nm in standard form. Our Stage 1 ECU tuning file raises output to 180bhp and 840Nm, a gain of 34bhp and 142Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.