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Order This File Ask a QuestionThe Case Farmall 105A 3.4 Tier 4A 106hp (All) produces 106bhp and 444Nm in standard form. Our Stage 1 ECU tuning file raises output to 136bhp and 540Nm, a gain of 30bhp and 96Nm, with no hardware modifications required. The file is delivered through the ByteFlash Portal and is ready to write to the vehicle.