just some questions regarding flashing these master slave ecu's

genuine mpps being used with latest version, read out both master and slave ecu, car is stage 2 and deflapped tuned,
had files decrypted and noread removed. As seen alot of ecu's going dead lately and wanted a to back them up.

Looking to add simple things like delete noread, some burbles on gear changes and see if the ARMD turning off makes it any smoother (has single mass flywheel)
Overall the tune is good so really cba to touch anything else maybe raise back up the knock settings for safety


My questions,
Can i flash 1 file for example master file edited flashed to both master and slave ecu?
Do i need to edit both the master and slave read out files individually and flash them back?

Going to use Mpps to correct checksum.

Anyone with experience with these, you would really help a bother out.

Cheers Cherry

Now to make sure MRC didn't do anything other than a noread protection. Was mapped back in 2016 by the previous previous owner and doesn't have map switching etc.

interesting to see the changes claimed like VVT modifications but no vvt maps altered