Does anyone out here have experience or knowledge of reflashing the stock ECU's for 2012 and up Lancers that could give me some insight? Are the parameters able to be changed with a specific software or has Mitsubishi locked the PCM up tight from data changes of any sort? I'm not able to boost the car so I'm curious to see what kind of gains I could get with some simple tuning and dynoing.

 

I understand correctly You want to flash the unit AWC ?
There on Board is MB90f387 .

The manufacturer of the processor it is written that you can flash it to Caen bus.

And since the processor is sewn on UART.

Here is a photo of the unit.

https://www.drive2.ru/b/455188744002077445/