MoTeC M1 Firmware: JRR Subaru STi 2004+

JRR Subaru STi 2004-2019 firmware license for MoTeC M1 ECU

  • If you are a MoTeC dealer or already own an M1 ECU, you can purchase just the firmware license - no ECU purchase required 

  • This firmware package suits 2004-2019 Subaru STi vehicles with single or dual AVCS EJ engine with 36-2-2-2 crank trigger pattern, 4-1 inlet cam pattern, 2 tooth exhaust cam pattern (dual AVCS) and no separate sync sensor

  • May support other Subaru models using the same crank/cam triggers and CAN protocol

  • A paddle shift gearbox control version of this firmware is also available - based on MoTeC GPR-P

This firmware is based upon MoTeC GPR and includes the following features:

  • Includes full DCCD control - control the center differential system directly from the M1 ECU (PNP sub harness available)

  • Full integration with Subaru STi OE CAN bus - maintains proper vehicle operation and dash functionality

  • Supports the factory cruise control including the steering wheel controls

  • iDrive switch (if equipped) can be used for any driver switch function in the M1 (boost/throttle/fuel trim/anti lag maps etc)

  • Flex fuel control - adjust fuel, timing, boost, cold start and more based upon ethanol content

  • Supports running two separate fuel systems - each running a different type of fuel

  • Nitrous control - various parameters supplied to control nitrous. Includes nitrous bottle heater relay control based on nitrous pressure

  • CO2/wastegate pressure control - controls a fill/bleed solenoid setup to control wastegate pressure

  • Water injection control - with failsafe for boost/timing/fuel based on pressure sensor feedback

  • Air bypass anti-lag control - using pneumatic valve with solenoids or servo valve

  • Turbo shaft speed limiting

  • Supports the use of third party lambda controllers with 0-5v signal output

  • Supports momentary buttons

  • Supports direct input from a MoTeC/Racegrade CAN keypad

  • The lower price (compared to GPR) is due to this firmware being locked to the OE engine (unless otherwise noted). Locking is done by hard coding the crank and cam trigger pattern, cylinder number and firing order in the firmware. To change to a different engine or non stock trigger pattern requires purchasing a different firmware license. Multiple firmware licenses can be installed on a single ECU.

  • Like anything, the MoTeC M1 requires knowledge and experience to gain the best results. While we are happy to answer technical questions, purchase of this M1 firmware does not come with unlimited tuning support. We can quote tuning for your particular setup, refer you to someone in your area, or if you prefer to do it yourself (and lack the experience) then we can also quote training.

  • This firmware is for closed course competition vehicles only. It does not meet federal emissions requirements.

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