I'm on a search for tuners and software/hardware and all known facts relating to tuning the 380. It's the next logical step after the lite mods we've started on so far.

I found some interesting facts so far in the quest.

1. The third catalytic converter is not necessary for ADR compliance under Euro3 requirements. It is a convenient way to create a subtle back pressure for the balance of 02 and airflow sensors. It can be removed as i have done but will then cause the sensors to provide incorrect information to the ECU that cause it to run rich (evidence; my current situation). The ECU maps are very finely balanced for power versus economy and even running on different fuels over a period can cause check engine warnings.

2. The 380 ECU can be accessed via a 15 pin rectangular plug on the left hand side of the wheel under the dash (I haven't looked for it yet). It is the same industry standard interface used by many manufacturers - good news.

3. The Mitu ECUs, including EVOs, are notoriously difficult to tune because the chips (EPROMS) are soldered to the PCB and can't be removed. They can be reflashed, as done with EVOs.

4. So far no-one has attempted (outside Ralliart) to retune the 380 - that's about to change .

5. The OZ 3.8 litre engine is a very strong engine. The US Galant 3.8 that was the donor was tested here and a number of crankshafts failed.
The Australian manufactured engine has a strengthened steel crank as one of the changes implemented for the 380.

6. The initial version of the TMR 380 engine developed 270KW @ 8PSI and passed all Mitsu bishi's engineering and reliability testing. The boost was reduced to 6PSI and 245KW due a cautious approach adopted later in the project by MMC.

I'll post more as I go.