Colorado RG — Stage 2 ECU Tune
- 23% increase in torque output
- Enhanced towing capacity
- Boost pressure optimized at 2.0 bar
- Air-fuel ratio controlled at 17:1 for safe operation
- Exhaust gas temperatures maintained below 500 degrees during acceleration
Stage 2 for the 2015 RG Colorado is built around airflow. Full exhaust system, upgraded intercooler, and a snorkel feed the revised calibration, lifting power from 118 to 127 kW at the wheels and torque from 460 to 560 Nm. Boost sits at 2 bar.
The torque curve is the story here. That 100 Nm gain gives real weight when towing or touring, and the intercooler keeps intake temps in check through summer. The exhaust frees up backpressure without drawing attention, and the calibration uses the extra flow to pull cleanly through the mid-range where these motors spend most of their working life.
It's a usable tune for loaded work and long highway miles. Figures supplied by the workshop post-dyno.
What modifications are required for this Stage 2 result?
Full exhaust system, upgraded intercooler, snorkel, and ECU calibration. These hardware changes support the torque and power increase while managing heat and airflow.
How much torque does the Stage 2 tune add?
Torque lifts from 460 Nm to 560 Nm—a 100 Nm gain. That's measured at the wheels and directly improves towing capacity and mid-range drivability.
Is this tune suitable for daily driving and towing?
Yes. The calibration is written for real-world use—towing, touring, and loaded driving. The torque delivery suits highway work and the intercooler manages heat under sustained load.
Workshop & Dealer Access
Protunes supplies ECU calibration files exclusively to approved workshops, tuners, and dealers throughout Australia.
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