The Nissan Frontier / NP300 4.0 V6 261hp (All) produces 261bhp and 381Nm in standard form. Our Stage 1 ECU tuning file raises output to 281bhp and 405Nm, a gain of 20bhp and 24Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.