Silvia — Stage 2 ECU Tune
- Carbon output reduced from 16g/km to under 2g/km
- Improved torque delivery
- Enhanced power delivery
- Refined engine behaviour
- Maintained performance while meeting strict emissions compliance
- No hardware modifications required
This 1999 Silvia arrived as a Stage 2 street build needing RG240 emissions calibration and full ADR37/01 compliance without sacrificing usable power. The SR20 platform responds well to calibration refinement once the supporting hardware is sorted, and this file reflects that.
The recalibrated ECU lifted output from 255 kW to 323 kW at the wheels, with torque climbing from 430 Nm to 499 Nm. The tune focused on maintaining compliance with Australian design rules while extracting the headroom these motors offer once fuel and ignition maps are properly dialled in.
Intended for closed-circuit competition use. A clean example of what's achievable on the SR20 platform when the calibration work is done properly and the compliance side is handled from the outset.
What does RG240 emissions calibration involve for a build like this?
RG240 calibration ensures the tune meets ADR37/01 standards for exhaust emissions. This file was recalibrated to maintain compliance while supporting the performance gains from the Stage 2 hardware.
Is this suitable for street use in Australia?
The file includes ADR37/01 compliance work, but a 323 kW SR20 is aimed at closed-circuit competition use. Workshop discretion applies depending on local regulations and the customer's intended application.
How does the torque curve sit with these figures?
Torque climbed to 499 Nm from 430 Nm. The SR20 benefits from proper calibration to flatten the curve and improve driveability once boost and fuelling are optimised with the ECU tune.
Workshop & Dealer Access
Protunes supplies ECU calibration files exclusively to approved workshops, tuners, and dealers throughout Australia.
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