Navara NP300 — Stage 1 ECU Tune
- 24% increase in power output
- 15% increase in torque delivery
- Improved fuel efficiency
- Enhanced mid-range torque performance
- Optimized boost control calibration
- Maintained factory reliability standards
The 2015 NP300 with the D23 donk responds well to a software-only Stage 1. This file lifted output from 89 kW to 110 kW at the wheels—a 21 kW gain—while torque moved from 335 Nm to 385 Nm. Useful middle-range pull for towing or highway overtaking without asking the owner to open the wallet for hardware.
Calibration touches boost control, solenoids, high-pressure fuel pump mapping, injector duration, and drive-by-wire fuelling to keep it all linear and predictable. Factory ECU platform, so no translation issues or plug adaptors. Dyno results supplied by the workshop that commissioned the file.
Does this tune require any hardware changes?
No. This is a Stage 1 software-only file. The calibration adjusts factory boost control, fuel pump, injectors, and throttle mapping without needing aftermarket parts.
What's the real-world benefit of the extra torque?
The jump from 335 Nm to 385 Nm makes a noticeable difference when towing or loaded touring. You'll sit in higher gears longer and need fewer downshifts on long highway climbs.
Is this suitable for a daily driver that tows occasionally?
Yes. The tune keeps factory driveability and doesn't push the D23 into territory that demands constant monitoring. It's a sensible step up for mixed use.
Workshop & Dealer Access
Protunes supplies ECU calibration files exclusively to approved workshops, tuners, and dealers throughout Australia. Platform: Factory.
Apply for Workshop Access