Evolution 9 Evo — Stage 3 ECU Tune
- 177% power increase to 186kW
- 121% torque increase to 333Nm
- Advanced boost control optimization
- Flex fuel compatibility for E85 and 98 RON
- Enhanced fuel system management
- Improved engine component durability
This 2005 Evo 9 arrived already running 397 kW at the wheels, sitting on a fully built 4G63 with upgraded internals, high-pressure fuel pump, larger injectors, and revised boost control hardware. The Haltech ECU gave us the scope to refine flex-fuel calibration and extract another 15 kW, landing at 412 kW with torque climbing from 310 Nm to 333 Nm.
The focus was optimising fuel delivery and ignition timing to suit E85 and pump 98 RON interchangeably, while keeping the calibration safe for closed-circuit competition use. Drive-by-wire calibration was dialled in for smoother throttle response, and boost control smoothed out through the solenoid and wastegate setup.
The build's designed for off-road and track environments where the AWD drivetrain and full supporting hardware can be used as intended. Haltech's flexibility made the flex-fuel tuning straightforward once the hardware was sorted.
What flex-fuel ratio does the tune support?
The calibration handles E85 through to 98 RON pump fuel, with the ECU adjusting fuelling and timing based on ethanol content detected by the sensor. Blend ratios in between are automatically compensated.
Is this tune safe for street use?
This is a full competition-spec build intended for off-road and closed-circuit use. The power output and supporting modifications exceed typical street reliability margins.
What drivetrain can handle 412 kW in an Evo 9?
The AWD system will need upgraded driveline components—clutch, transfer case internals, and diffs—to safely handle this output under hard use. The build assumes these are already addressed.
Workshop & Dealer Access
Protunes supplies ECU calibration files exclusively to approved workshops, tuners, and dealers throughout Australia. Platform: Haltech.
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