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EcuTek ProECU Subaru K-Line 99

The ProECU Subaru K-Line 99 suite allows reprogramming of the standard factory engine management unit for the classic shape Impreza, known as the Turbo 2000 (UK), GT (Europe) and WRX/STI (Japan). The Legacy Twin Turbo and Forester Turbo are also supported for all regions.

35 ECU versions are currently supported from all regions.

Subaru K-Line 99 Tuneable Parameters

Subaru K-Line 99 allows you to alter parameters in the ECU, such as:

  • Fuelling and Fuel Compensation.
  • Ignition Timing and Ignition Compensation.
  • Boost Pressure.
  • Boost Limit.
  • Turbo Dynamics.
  • Boost Pressure Based Speed Limiting.
  • Maximum Speed Limit Removal.
  • Minimum and Maximum Wastegate Duty Cycle.
  • Rev Limit.
  • Air Flow Sensor Scaling.
  • And many more....



Subaru K-Line 99 Supported Vehicles

Subaru K-Line 99 currently supports over 30 different ECU versions.

  • Impreza Turbo - Right Hand Drive
  • Impreza GT - Left Hand Drive.
  • Impreza WRX v5 & v6.
  • Impreza STI v5 & v6 & P1.
  • Impreza WRX & STI Types R and RA also supported.
  • Forester Turbo S & STI.

The list of supported ECU for Flash99 is shown below. This list is constantly being updated:

  • UK Impreza WRX - ae800
  • UK Impreza WRX - ae801
  • UK Impreza WRX - ae802
  • European Impreza WRX - ae780
  • European Impreza WRX - ae781
  • European Impreza WRX - ae782
  • European Prodrive P1 - ag340
  • Japanese Impreza STI5/6 - af040
  • Japanese Impreza STI5/6 - af041
  • Japanese Impreza WRX Type 5/6 RA - ae480
  • Japanese Impreza WRX Type 5/6 RA - ae481
  • Japanese Impreza WRX - ae490
  • Japanese Impreza WRX - ae491
  • Forrester Turbo - af040
  • Forrester Turbo - af041
  • Forrester Turbo - ag050
  • Forrester Turbo - ag060
  • Forrester Turbo - ae901
  • Forrester Turbo STI - ag380
  • Forrester Turbo - af260
  • Forrester Turbo - af261
  • Legacy Twin Turbo - ad981
  • Legacy Twin Turbo - ad981
  • Legacy Twin Turbo - ad983
  • Legacy Twin Turbo - ad984
  • Legacy Twin Turbo - ad985
  • Legacy Twin Turbo - ag292
  • Legacy Twin Turbo - ag302
  • Legacy Twin Turbo - af181
  • Legacy Twin Turbo - af330
  • Legacy Twin Turbo - ad971

Tuning Examples

Below is a dyno plot from a UK 2002 WRX with standard induction, turbo and intercooler. The exhaust has been improved and the ECU remapped to provide 60 BHP more power at high revs, as well as very useful mid-range torque gains.

Remapped UK WRX with Full Sports Catalyst Exhaust System & EcuTek ECU


Remapped UK WRX with Exhaust Backbox (muffler) and EcuTek ECU

Graphical Map Views

All 2d and 3d maps may be viewed graphically for fast interpretation of map shape. This also allows errors to be quickly spotted. The example below shows a fuel map that is being viewed graphically, to show the spectrum of air/fuel ratios used by this ECU.


Subaru K-Line 99 Tuning Suite fuel map

Live Map Access

Whilst testing the car, either on the road or dyno, access to fuelling, ignition and boost maps may be viewed in real time to show which parts of the map are being accessed by the ECU. ProECU Tools will also colour the zones of the fuelling or ignition maps based on the knock correction and lambda values retrieved from the car under test. This provides a new level of diagnostic ability, and allows the tuner to quickly see which areas of the map require attention.

Subaru K-Line 99 ignition map

Subaru K-Line 99 map

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