Silvia S13 — Stage 3 ECU Tune
- Improved Power Output
- Improved Torque Delivery
- Launch Control
- Boost Control
- Enhanced Fuel System Management
Built for closed-circuit use, this S13 sits on a full Stage 3 package with upgraded fuelling, drive-by-wire conversion, and revised boost control hardware. The Haltech ECU manages flex fuel strategy across pump 98 and E85, letting the driver switch fuels to suit track conditions or availability without needing a reflash.
The workshop recorded 445 kW at the wheels and 818 Nm after calibration, up from 405 kW and 600 Nm on the previous map. New high-pressure pump and injectors were needed to support the ethanol fuelling at the top end, while wastegate and solenoid changes gave finer boost control through the mid-range.
This is a street-chassis car with serious track intent — flex capability means the owner can dial back to pump fuel for road miles, then fill with E85 when it's time to compete.
What does flex fuel mean for this build?
The Haltech ECU detects ethanol content in real time, so the car can run anything from 98 RON pump fuel through to E85 without a map change. Power and torque peak on E85, but it'll safely run pump fuel when ethanol isn't available.
Why the drive-by-wire conversion?
Drive-by-wire gives the Haltech full throttle authority for traction control and launch strategies on a high-output RWD car. It also cleans up the engine bay and removes cable slop.
Is this suitable for street use?
The calibration supports road driving on pump fuel, but the output and hardware specification are designed for closed-circuit competition. Not intended for public road use at full power.
Workshop & Dealer Access
Protunes supplies ECU calibration files exclusively to approved workshops, tuners, and dealers throughout Australia. Platform: Haltech.
Apply for Workshop Access